31040024 has 8 divisors (see below), whose sum is σ = 58200060. Its totient is φ = 15520008.

The previous prime is 31040017. The next prime is 31040029. The reversal of 31040024 is 42004013.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 31039990 and 31040008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31040029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939994 + ... + 1940009.

Almost surely, 2^31040024 is an apocalyptic number.

It is an amenable number.

31040024 is a deficient number, since it is larger than the sum of its proper divisors (27160036).

31040024 is a wasteful number, since it uses less digits than its factorization.

31040024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880009 (or 3880005 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 31040024 is about 5571.3574647477. The cubic root of 31040024 is about 314.2732013121.

Adding to 31040024 its reverse (42004013), we get a palindrome (73044037).

The spelling of 31040024 in words is "thirty-one million, forty thousand, twenty-four".