398812052 has 24 divisors (see below), whose sum is σ = 736411200. Its totient is φ = 188459136.

The previous prime is 398812039. The next prime is 398812087. The reversal of 398812052 is 250218893.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 398811997 and 398812015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26849 + ... + 38967.

It is an arithmetic number, because the mean of its divisors is an integer number (30683800).

Almost surely, 2^398812052 is an apocalyptic number.

It is an amenable number.

398812052 is a deficient number, since it is larger than the sum of its proper divisors (337599148).

398812052 is a wasteful number, since it uses less digits than its factorization.

398812052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12575 (or 12573 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 398812052 is about 19970.2792168763. The cubic root of 398812052 is about 736.0761701452.

The spelling of 398812052 in words is "three hundred ninety-eight million, eight hundred twelve thousand, fifty-two".