31234330 has 32 divisors (see below), whose sum is σ = 57423168. Its totient is φ = 12230400.

The previous prime is 31234319. The next prime is 31234337. The reversal of 31234330 is 3343213.

It is a junction number, because it is equal to n+sod(n) for n = 31234298 and 31234307.

It is not an unprimeable number, because it can be changed into a prime (31234337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147925 + ... + 148135.

It is an arithmetic number, because the mean of its divisors is an integer number (1794474).

Almost surely, 2^31234330 is an apocalyptic number.

31234330 is a deficient number, since it is larger than the sum of its proper divisors (26188838).

31234330 is a wasteful number, since it uses less digits than its factorization.

31234330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 31234330 is about 5588.7682005966. The cubic root of 31234330 is about 314.9276057704.

Adding to 31234330 its reverse (3343213), we get a palindrome (34577543).

The spelling of 31234330 in words is "thirty-one million, two hundred thirty-four thousand, three hundred thirty".