31004444 has 6 divisors (see below), whose sum is σ = 54257784. Its totient is φ = 15502220.

The previous prime is 31004431. The next prime is 31004453. The reversal of 31004444 is 44440013.

It is a super-2 number, since 2×31004444² = 1922551095498272, which contains 22 as substring.

31004444 is a modest number, since divided by 4444 gives 3100 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3875552 + ... + 3875559.

It is an arithmetic number, because the mean of its divisors is an integer number (9042964).

Almost surely, 2^31004444 is an apocalyptic number.

It is an amenable number.

31004444 is a deficient number, since it is larger than the sum of its proper divisors (23253340).

31004444 is a wasteful number, since it uses less digits than its factorization.

31004444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7751115 (or 7751113 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 31004444 is about 5568.1634315095. The cubic root of 31004444 is about 314.1530755925.

Adding to 31004444 its reverse (44440013), we get a palindrome (75444457).

The spelling of 31004444 in words is "thirty-one million, four thousand, four hundred forty-four".