398924385810 has 32 divisors (see below), whose sum is σ = 963292271040. Its totient is φ = 105727197888.

The previous prime is 398924385733. The next prime is 398924385841. The reversal of 398924385810 is 18583429893.

It is a super-2 number, since 2×398924385810² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40784925 + ... + 40794704.

It is an arithmetic number, because the mean of its divisors is an integer number (30102883470).

Almost surely, 2^398924385810 is an apocalyptic number.

398924385810 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

398924385810 is an abundant number, since it is smaller than the sum of its proper divisors (564367885230).

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

398924385810 is a wasteful number, since it uses less digits than its factorization.

398924385810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81579802.

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 398924385810 in words is "three hundred ninety-eight billion, nine hundred twenty-four million, three hundred eighty-five thousand, eight hundred ten".