398022032 has 20 divisors (see below), whose sum is σ = 811756080. Its totient is φ = 188536608.

The previous prime is 398022019. The next prime is 398022043. The reversal of 398022032 is 230220893.

It is a junction number, because it is equal to n+sod(n) for n = 398021986 and 398022004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654338 + ... + 654945.

It is an arithmetic number, because the mean of its divisors is an integer number (40587804).

Almost surely, 2^398022032 is an apocalyptic number.

It is an amenable number.

398022032 is an abundant number, since it is smaller than the sum of its proper divisors (413734048).

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

398022032 is a wasteful number, since it uses less digits than its factorization.

398022032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309310 (or 1309304 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 398022032 is about 19950.4895178038. The cubic root of 398022032 is about 735.5898096346.

The spelling of 398022032 in words is "three hundred ninety-eight million, twenty-two thousand, thirty-two".