990562140 has 36 divisors (see below), whose sum is σ = 3004705704. Its totient is φ = 264149856.

The previous prime is 990562129. The next prime is 990562201. The reversal of 990562140 is 41265099.

990562140 is a `hidden beast` number, since 9 + 90 + 562 + 1 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 990562095 and 990562104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2751382 + ... + 2751741.

Almost surely, 2^990562140 is an apocalyptic number.

990562140 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

990562140 is an abundant number, since it is smaller than the sum of its proper divisors (2014143564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990562140 is a wasteful number, since it uses less digits than its factorization.

990562140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5503138 (or 5503133 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 990562140 is about 31473.1971683844. The cubic root of 990562140 is about 996.8440974229.

The spelling of 990562140 in words is "nine hundred ninety million, five hundred sixty-two thousand, one hundred forty".