31424024044 has 48 divisors (see below), whose sum is σ = 65036220480. Its totient is φ = 12998845440.

The previous prime is 31424024041. The next prime is 31424024069. The reversal of 31424024044 is 44042042413.

It is a super-2 number, since 2×31424024044² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (31424024041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4590064 + ... + 4596904.

It is an arithmetic number, because the mean of its divisors is an integer number (1354921260).

Almost surely, 2^31424024044 is an apocalyptic number.

It is an amenable number.

31424024044 is an abundant number, since it is smaller than the sum of its proper divisors (33612196436).

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

31424024044 is a wasteful number, since it uses less digits than its factorization.

31424024044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12538 (or 12536 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 31424024044 its reverse (44042042413), we get a palindrome (75466066457).

The spelling of 31424024044 in words is "thirty-one billion, four hundred twenty-four million, twenty-four thousand, forty-four".