398631127874 has 16 divisors (see below), whose sum is σ = 684331512000. Its totient is φ = 170600945904.

The previous prime is 398631127801. The next prime is 398631127877. The reversal of 398631127874 is 478721136893.

It is a happy number.

It is a super-2 number, since 2×398631127874² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (398631127877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20070224 + ... + 20090075.

It is an arithmetic number, because the mean of its divisors is an integer number (42770719500).

Almost surely, 2^398631127874 is an apocalyptic number.

398631127874 is a deficient number, since it is larger than the sum of its proper divisors (285700384126).

398631127874 is a wasteful number, since it uses less digits than its factorization.

398631127874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40161017.

The product of its digits is 12192768, while the sum is 59.

The spelling of 398631127874 in words is "three hundred ninety-eight billion, six hundred thirty-one million, one hundred twenty-seven thousand, eight hundred seventy-four".