990274031 has 16 divisors (see below), whose sum is σ = 1030288224. Its totient is φ = 951035904.

The previous prime is 990274027. The next prime is 990274037. The reversal of 990274031 is 130472099.

It is a cyclic number.

It is not a de Polignac number, because 990274031 - 2² = 990274027 is a prime.

It is a super-2 number, since 2×990274031² = 1961285312945977922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 990273982 and 990274000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990274037) by changing a digit.

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, 1810100 + ... + 1810646.

It is an arithmetic number, because the mean of its divisors is an integer number (64393014).

Almost surely, 2^990274031 is an apocalyptic number.

990274031 is a deficient number, since it is larger than the sum of its proper divisors (40014193).

990274031 is a wasteful number, since it uses less digits than its factorization.

990274031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 990274031 is about 31468.6197822529. The cubic root of 990274031 is about 996.7474426739.

The spelling of 990274031 in words is "nine hundred ninety million, two hundred seventy-four thousand, thirty-one".