31404124 has 6 divisors (see below), whose sum is σ = 54957224. Its totient is φ = 15702060.

The previous prime is 31404119. The next prime is 31404127. The reversal of 31404124 is 42140413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3925512 + ... + 3925519.

Almost surely, 2^31404124 is an apocalyptic number.

It is an amenable number.

31404124 is a deficient number, since it is larger than the sum of its proper divisors (23553100).

31404124 is a wasteful number, since it uses less digits than its factorization.

31404124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851035 (or 7851033 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 31404124 is about 5603.9382580467. The cubic root of 31404124 is about 315.4972376929.

Adding to 31404124 its reverse (42140413), we get a palindrome (73544537).

The spelling of 31404124 in words is "thirty-one million, four hundred four thousand, one hundred twenty-four".