398037633 has 12 divisors (see below), whose sum is σ = 617364720. Its totient is φ = 227449992.

The previous prime is 398037623. The next prime is 398037649. The reversal of 398037633 is 336730893.

It is not a de Polignac number, because 398037633 - 2⁸ = 398037377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398037623) 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, 1353723 + ... + 1354016.

It is an arithmetic number, because the mean of its divisors is an integer number (51447060).

Almost surely, 2^398037633 is an apocalyptic number.

It is an amenable number.

398037633 is a deficient number, since it is larger than the sum of its proper divisors (219327087).

398037633 is a wasteful number, since it uses less digits than its factorization.

398037633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707756 (or 2707749 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 42.

The square root of 398037633 is about 19950.8805068849. The cubic root of 398037633 is about 735.5994203142.

The spelling of 398037633 in words is "three hundred ninety-eight million, thirty-seven thousand, six hundred thirty-three".