398532632 has 32 divisors (see below), whose sum is σ = 792270720. Its totient is φ = 187292160.

The previous prime is 398532553. The next prime is 398532637. The reversal of 398532632 is 236235893.

It is a self number, because there is not a number n which added to its sum of digits gives 398532632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398532637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133298 + ... + 136254.

It is an arithmetic number, because the mean of its divisors is an integer number (24758460).

Almost surely, 2^398532632 is an apocalyptic number.

It is an amenable number.

398532632 is a deficient number, since it is larger than the sum of its proper divisors (393738088).

398532632 is a wasteful number, since it uses less digits than its factorization.

398532632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971 (or 3967 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 398532632 is about 19963.2820948861. The cubic root of 398532632 is about 735.9042241078.

The spelling of 398532632 in words is "three hundred ninety-eight million, five hundred thirty-two thousand, six hundred thirty-two".