990770456 has 16 divisors (see below), whose sum is σ = 2000594400. Its totient is φ = 457278624.

The previous prime is 990770411. The next prime is 990770483. The reversal of 990770456 is 654077099.

It is a self number, because there is not a number n which added to its sum of digits gives 990770456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4763216 + ... + 4763423.

It is an arithmetic number, because the mean of its divisors is an integer number (125037150).

Almost surely, 2^990770456 is an apocalyptic number.

It is an amenable number.

990770456 is an abundant number, since it is smaller than the sum of its proper divisors (1009823944).

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

990770456 is a wasteful number, since it uses less digits than its factorization.

990770456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9526658 (or 9526654 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 990770456 is about 31476.5064135142. The cubic root of 990770456 is about 996.9139715585.

The spelling of 990770456 in words is "nine hundred ninety million, seven hundred seventy thousand, four hundred fifty-six".