1622874240 has 192 divisors, whose sum is σ = 6035342040. Its totient is φ = 399458304.

The previous prime is 1622874167. The next prime is 1622874241. The reversal of 1622874240 is 424782261.

1622874240 is a `hidden beast` number, since 1 + 6 + 228 + 7 + 424 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1461685824 + 161188416 = 38232^2 + 12696^2 .

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1622874195 and 1622874204.

It is not an unprimeable number, because it can be changed into a prime (1622874241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64044 + ... + 85716.

Almost surely, 2^1622874240 is an apocalyptic number.

1622874240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622874240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3017671020).

1622874240 is an abundant number, since it is smaller than the sum of its proper divisors (4412467800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1622874240 is a wasteful number, since it uses less digits than its factorization.

1622874240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21711 (or 21696 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 1622874240 is about 40284.9133051072. The cubic root of 1622874240 is about 1175.1544664893.

The spelling of 1622874240 in words is "one billion, six hundred twenty-two million, eight hundred seventy-four thousand, two hundred forty".