31234004 has 6 divisors (see below), whose sum is σ = 54659514. Its totient is φ = 15617000.

The previous prime is 31234003. The next prime is 31234009. The reversal of 31234004 is 40043213.

It can be written as a sum of positive squares in only one way, i.e., 26832400 + 4401604 = 5180^2 + 2098^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3904247 + ... + 3904254.

It is an arithmetic number, because the mean of its divisors is an integer number (9109919).

Almost surely, 2^31234004 is an apocalyptic number.

It is an amenable number.

31234004 is a deficient number, since it is larger than the sum of its proper divisors (23425510).

31234004 is a wasteful number, since it uses less digits than its factorization.

31234004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7808505 (or 7808503 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 31234004 is about 5588.7390348808. The cubic root of 31234004 is about 314.9265101089.

Adding to 31234004 its reverse (40043213), we get a palindrome (71277217).

The spelling of 31234004 in words is "thirty-one million, two hundred thirty-four thousand, four".