990834156 has 54 divisors (see below), whose sum is σ = 2712107580. Its totient is φ = 304870176.

The previous prime is 990834151. The next prime is 990834157. The reversal of 990834156 is 651438099.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (990834151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 75346 + ... + 87513.

Almost surely, 2^990834156 is an apocalyptic number.

It is an amenable number.

990834156 is an abundant number, since it is smaller than the sum of its proper divisors (1721273424).

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

990834156 is a wasteful number, since it uses less digits than its factorization.

990834156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162895 (or 162877 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 990834156 is about 31477.5182630397. The cubic root of 990834156 is about 996.9353360964.

The spelling of 990834156 in words is "nine hundred ninety million, eight hundred thirty-four thousand, one hundred fifty-six".