31030044 has 12 divisors (see below), whose sum is σ = 72403464. Its totient is φ = 10343344.

The previous prime is 31030001. The next prime is 31030067. The reversal of 31030044 is 44003013.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292907 + ... + 1292930.

It is an arithmetic number, because the mean of its divisors is an integer number (6033622).

Almost surely, 2^31030044 is an apocalyptic number.

It is an amenable number.

31030044 is an abundant number, since it is smaller than the sum of its proper divisors (41373420).

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

31030044 is a wasteful number, since it uses less digits than its factorization.

31030044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585844 (or 2585842 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 31030044 is about 5570.4617402869. The cubic root of 31030044 is about 314.2395159564.

Adding to 31030044 its reverse (44003013), we get a palindrome (75033057).

The spelling of 31030044 in words is "thirty-one million, thirty thousand, forty-four".