31004234 has 4 divisors (see below), whose sum is σ = 46506354. Its totient is φ = 15502116.

The previous prime is 31004231. The next prime is 31004249. The reversal of 31004234 is 43240013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27931225 + 3073009 = 5285^2 + 1753^2 .

It is a super-2 number, since 2×31004234² = 1922525051853512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31004231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7751057 + ... + 7751060.

Almost surely, 2^31004234 is an apocalyptic number.

31004234 is a deficient number, since it is larger than the sum of its proper divisors (15502120).

31004234 is a wasteful number, since it uses less digits than its factorization.

31004234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15502119.

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

The square root of 31004234 is about 5568.1445742725. The cubic root of 31004234 is about 314.1523663146.

Adding to 31004234 its reverse (43240013), we get a palindrome (74244247).

The spelling of 31004234 in words is "thirty-one million, four thousand, two hundred thirty-four".