1622996240 has 80 divisors (see below), whose sum is σ = 3835171200. Its totient is φ = 638668800.

The previous prime is 1622996209. The next prime is 1622996267. The reversal of 1622996240 is 426992261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543715 + ... + 1544765.

It is an arithmetic number, because the mean of its divisors is an integer number (47939640).

Almost surely, 2^1622996240 is an apocalyptic number.

1622996240 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 1622996240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1917585600).

1622996240 is an abundant number, since it is smaller than the sum of its proper divisors (2212174960).

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

1622996240 is a wasteful number, since it uses less digits than its factorization.

1622996240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1354 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1622996240 is about 40286.4274911539. The cubic root of 1622996240 is about 1175.1839132673.

The spelling of 1622996240 in words is "one billion, six hundred twenty-two million, nine hundred ninety-six thousand, two hundred forty".