31044018 has 8 divisors (see below), whose sum is σ = 62088048. Its totient is φ = 10348004.

The previous prime is 31043993. The next prime is 31044019. The reversal of 31044018 is 81044013.

It is a sphenic number, since it is the product of 3 distinct primes.

31044018 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 31043985 and 31044003.

It is not an unprimeable number, because it can be changed into a prime (31044019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586996 + ... + 2587007.

It is an arithmetic number, because the mean of its divisors is an integer number (7761006).

Almost surely, 2^31044018 is an apocalyptic number.

31044018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31044018 is a wasteful number, since it uses less digits than its factorization.

31044018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174008.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 31044018 is about 5571.7158936902. The cubic root of 31044018 is about 314.2866801820.

The spelling of 31044018 in words is "thirty-one million, forty-four thousand, eighteen".