331677138 has 16 divisors (see below), whose sum is σ = 714381696. Its totient is φ = 102054480.

The previous prime is 331677121. The next prime is 331677149. The reversal of 331677138 is 831776133.

It is a super-2 number, since 2×331677138² = 220019447743742088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 331677096 and 331677105.

It is an unprimeable number.

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, 2126058 + ... + 2126213.

It is an arithmetic number, because the mean of its divisors is an integer number (44648856).

Almost surely, 2^331677138 is an apocalyptic number.

331677138 is an abundant number, since it is smaller than the sum of its proper divisors (382704558).

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

331677138 is a wasteful number, since it uses less digits than its factorization.

331677138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252289.

The product of its digits is 63504, while the sum is 39.

The square root of 331677138 is about 18212.0053261578. The cubic root of 331677138 is about 692.2110254983.

The spelling of 331677138 in words is "three hundred thirty-one million, six hundred seventy-seven thousand, one hundred thirty-eight".