31344490 has 32 divisors (see below), whose sum is σ = 59760000. Its totient is φ = 11803968.

The previous prime is 31344457. The next prime is 31344497. The reversal of 31344490 is 9444313.

It is not an unprimeable number, because it can be changed into a prime (31344497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37396 + ... + 38224.

It is an arithmetic number, because the mean of its divisors is an integer number (1867500).

Almost surely, 2^31344490 is an apocalyptic number.

31344490 is a deficient number, since it is larger than the sum of its proper divisors (28415510).

31344490 is a wasteful number, since it uses less digits than its factorization.

31344490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 31344490 is about 5598.6150073031. The cubic root of 31344490 is about 315.2974095444.

The spelling of 31344490 in words is "thirty-one million, three hundred forty-four thousand, four hundred ninety".