398902133 has 16 divisors (see below), whose sum is σ = 476395776. Its totient is φ = 326578560.

The previous prime is 398902129. The next prime is 398902139. The reversal of 398902133 is 331209893.

It is not a de Polignac number, because 398902133 - 2² = 398902129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398902139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150185 + ... + 152817.

It is an arithmetic number, because the mean of its divisors is an integer number (29774736).

Almost surely, 2^398902133 is an apocalyptic number.

It is an amenable number.

398902133 is a deficient number, since it is larger than the sum of its proper divisors (77493643).

398902133 is a wasteful number, since it uses less digits than its factorization.

398902133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 398902133 is about 19972.5344661112. The cubic root of 398902133 is about 736.1315859612.

The spelling of 398902133 in words is "three hundred ninety-eight million, nine hundred two thousand, one hundred thirty-three".