31354490 has 8 divisors (see below), whose sum is σ = 56438100. Its totient is φ = 12541792.

The previous prime is 31354489. The next prime is 31354501. The reversal of 31354490 is 9445313.

It can be written as a sum of positive squares in 2 ways, for example, as 30151081 + 1203409 = 5491^2 + 1097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567715 + ... + 1567734.

Almost surely, 2^31354490 is an apocalyptic number.

31354490 is a deficient number, since it is larger than the sum of its proper divisors (25083610).

31354490 is a wasteful number, since it uses less digits than its factorization.

31354490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135456.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 31354490 is about 5599.5080141027. The cubic root of 31354490 is about 315.3309363180.

The spelling of 31354490 in words is "thirty-one million, three hundred fifty-four thousand, four hundred ninety".