398045810 has 16 divisors (see below), whose sum is σ = 718200000. Its totient is φ = 158836656.

The previous prime is 398045761. The next prime is 398045819. The reversal of 398045810 is 18540893.

It is a super-2 number, since 2×398045810² = 316880933717112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (398045819) 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 7 ways as a sum of consecutive naturals, for example, 43310 + ... + 51689.

It is an arithmetic number, because the mean of its divisors is an integer number (44887500).

Almost surely, 2^398045810 is an apocalyptic number.

398045810 is a deficient number, since it is larger than the sum of its proper divisors (320154190).

398045810 is a wasteful number, since it uses less digits than its factorization.

398045810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95425.

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

The square root of 398045810 is about 19951.0854341311. The cubic root of 398045810 is about 735.6044574889.

The spelling of 398045810 in words is "three hundred ninety-eight million, forty-five thousand, eight hundred ten".