31442024 has 16 divisors (see below), whose sum is σ = 59477220. Its totient is φ = 15581440.

The previous prime is 31441999. The next prime is 31442069. The reversal of 31442024 is 42024413.

It can be written as a sum of positive squares in 2 ways, for example, as 26522500 + 4919524 = 5150^2 + 2218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31441987 and 31442005.

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, 16487 + ... + 18294.

Almost surely, 2^31442024 is an apocalyptic number.

It is an amenable number.

31442024 is a deficient number, since it is larger than the sum of its proper divisors (28035196).

31442024 is a wasteful number, since it uses less digits than its factorization.

31442024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34900 (or 34896 counting only the distinct ones).

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

The square root of 31442024 is about 5607.3187888687. The cubic root of 31442024 is about 315.6241057257.

Adding to 31442024 its reverse (42024413), we get a palindrome (73466437).

The spelling of 31442024 in words is "thirty-one million, four hundred forty-two thousand, twenty-four".