331924432 has 120 divisors (see below), whose sum is σ = 778610880. Its totient is φ = 136604160.

The previous prime is 331924429. The next prime is 331924441. The reversal of 331924432 is 234429133.

It is a super-2 number, since 2×331924432² = 220347657117045248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331924394 and 331924403.

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 23 ways as a sum of consecutive naturals, for example, 3729444 + ... + 3729532.

It is an arithmetic number, because the mean of its divisors is an integer number (6488424).

Almost surely, 2^331924432 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 331924432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389305440).

331924432 is an abundant number, since it is smaller than the sum of its proper divisors (446686448).

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

331924432 is a wasteful number, since it uses less digits than its factorization.

331924432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 236 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 331924432 is about 18218.7933738763. The cubic root of 331924432 is about 692.3830171616.

The spelling of 331924432 in words is "three hundred thirty-one million, nine hundred twenty-four thousand, four hundred thirty-two".