398603232 has 72 divisors (see below), whose sum is σ = 1146337920. Its totient is φ = 131366400.

The previous prime is 398603209. The next prime is 398603237. The reversal of 398603232 is 232306893.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398603237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17857 + ... + 33407.

It is an arithmetic number, because the mean of its divisors is an integer number (15921360).

Almost surely, 2^398603232 is an apocalyptic number.

398603232 is a gapful number since it is divisible by the number (32) 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 398603232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573168960).

398603232 is an abundant number, since it is smaller than the sum of its proper divisors (747734688).

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

398603232 is a wasteful number, since it uses less digits than its factorization.

398603232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15656 (or 15645 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 398603232 is about 19965.0502628969. The cubic root of 398603232 is about 735.9476766521.

The spelling of 398603232 in words is "three hundred ninety-eight million, six hundred three thousand, two hundred thirty-two".