31230474 has 32 divisors (see below), whose sum is σ = 68580864. Its totient is φ = 9402480.

The previous prime is 31230473. The next prime is 31230491. The reversal of 31230474 is 47403213.

It is not an unprimeable number, because it can be changed into a prime (31230473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9307 + ... + 12209.

It is an arithmetic number, because the mean of its divisors is an integer number (2143152).

Almost surely, 2^31230474 is an apocalyptic number.

31230474 is an abundant number, since it is smaller than the sum of its proper divisors (37350390).

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

31230474 is a wasteful number, since it uses less digits than its factorization.

31230474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 31230474 is about 5588.4232123203. The cubic root of 31230474 is about 314.9146455562.

Adding to 31230474 its reverse (47403213), we get a palindrome (78633687).

The spelling of 31230474 in words is "thirty-one million, two hundred thirty thousand, four hundred seventy-four".