1622853540 has 432 divisors, whose sum is σ = 6408642240. Its totient is φ = 328527360.

The previous prime is 1622853523. The next prime is 1622853563. The reversal of 1622853540 is 453582261.

1622853540 is a `hidden beast` number, since 1 + 62 + 2 + 8 + 53 + 540 = 666.

It is a super-2 number, since 2×1622853540² = 5267307224581063200, which contains 22 as substring.

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 = 1622853495 and 1622853504.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4171666 + ... + 4172054.

It is an arithmetic number, because the mean of its divisors is an integer number (14834820).

Almost surely, 2^1622853540 is an apocalyptic number.

1622853540 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 1622853540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3204321120).

1622853540 is an abundant number, since it is smaller than the sum of its proper divisors (4785788700).

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

1622853540 is a wasteful number, since it uses less digits than its factorization.

1622853540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1622853540 is about 40284.6563842861. The cubic root of 1622853540 is about 1175.1494700452.

The spelling of 1622853540 in words is "one billion, six hundred twenty-two million, eight hundred fifty-three thousand, five hundred forty".