990415896 has 32 divisors (see below), whose sum is σ = 2486680560. Its totient is φ = 328719872.

The previous prime is 990415879. The next prime is 990415897. The reversal of 990415896 is 698514099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990415897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82965 + ... + 94148.

Almost surely, 2^990415896 is an apocalyptic number.

It is an amenable number.

990415896 is an abundant number, since it is smaller than the sum of its proper divisors (1496264664).

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

990415896 is a wasteful number, since it uses less digits than its factorization.

990415896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177355 (or 177351 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 51.

The square root of 990415896 is about 31470.8737724265. The cubic root of 990415896 is about 996.7950378579.

The spelling of 990415896 in words is "nine hundred ninety million, four hundred fifteen thousand, eight hundred ninety-six".