31443044 has 12 divisors (see below), whose sum is σ = 56512764. Its totient is φ = 15296544.

The previous prime is 31443037. The next prime is 31443053. The reversal of 31443044 is 44034413.

It can be written as a sum of positive squares in 2 ways, for example, as 23814400 + 7628644 = 4880^2 + 2762^2 .

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, 106079 + ... + 106374.

It is an arithmetic number, because the mean of its divisors is an integer number (4709397).

Almost surely, 2^31443044 is an apocalyptic number.

It is an amenable number.

31443044 is a deficient number, since it is larger than the sum of its proper divisors (25069720).

31443044 is a wasteful number, since it uses less digits than its factorization.

31443044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212494 (or 212492 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 31443044 is about 5607.4097406913. The cubic root of 31443044 is about 315.6275187068.

Adding to 31443044 its reverse (44034413), we get a palindrome (75477457).

The spelling of 31443044 in words is "thirty-one million, four hundred forty-three thousand, forty-four".