31342190 has 32 divisors (see below), whose sum is σ = 61776000. Its totient is φ = 11354400.

The previous prime is 31342189. The next prime is 31342217. The reversal of 31342190 is 9124313.

It is a super-2 number, since 2×31342190² = 1964665747992200, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 54605 + ... + 55175.

It is an arithmetic number, because the mean of its divisors is an integer number (1930500).

Almost surely, 2^31342190 is an apocalyptic number.

31342190 is a deficient number, since it is larger than the sum of its proper divisors (30433810).

31342190 is a wasteful number, since it uses less digits than its factorization.

31342190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 31342190 is about 5598.4095955905. The cubic root of 31342190 is about 315.2896973779.

The spelling of 31342190 in words is "thirty-one million, three hundred forty-two thousand, one hundred ninety".