31342404 has 48 divisors (see below), whose sum is σ = 76216448. Its totient is φ = 10015488.

The previous prime is 31342379. The next prime is 31342429. The reversal of 31342404 is 40424313.

It is an interprime number because it is at equal distance from previous prime (31342379) and next prime (31342429).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31929 + ... + 32895.

Almost surely, 2^31342404 is an apocalyptic number.

It is an amenable number.

31342404 is an abundant number, since it is smaller than the sum of its proper divisors (44874044).

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

31342404 is a wasteful number, since it uses less digits than its factorization.

31342404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 31342404 is about 5598.4287081287. The cubic root of 31342404 is about 315.2904149606.

Adding to 31342404 its reverse (40424313), we get a palindrome (71766717).

The spelling of 31342404 in words is "thirty-one million, three hundred forty-two thousand, four hundred four".