621096432 has 160 divisors (see below), whose sum is σ = 1804717824. Its totient is φ = 182476800.

The previous prime is 621096409. The next prime is 621096473. The reversal of 621096432 is 234690126.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 621096393 and 621096402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3431382 + ... + 3431562.

Almost surely, 2^621096432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621096432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902358912).

621096432 is an abundant number, since it is smaller than the sum of its proper divisors (1183621392).

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

621096432 is a wasteful number, since it uses less digits than its factorization.

621096432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 621096432 is about 24921.8063550779. The cubic root of 621096432 is about 853.2042526651.

The spelling of 621096432 in words is "six hundred twenty-one million, ninety-six thousand, four hundred thirty-two".