996438980 has 12 divisors (see below), whose sum is σ = 2092521900. Its totient is φ = 398575584.

The previous prime is 996438953. The next prime is 996438991. The reversal of 996438980 is 89834699.

It can be written as a sum of positive squares in 2 ways, for example, as 440328256 + 556110724 = 20984^2 + 23582^2 .

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, 24910955 + ... + 24910994.

It is an arithmetic number, because the mean of its divisors is an integer number (174376825).

Almost surely, 2^996438980 is an apocalyptic number.

It is an amenable number.

996438980 is an abundant number, since it is smaller than the sum of its proper divisors (1096082920).

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

996438980 is a wasteful number, since it uses less digits than its factorization.

996438980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49821958 (or 49821956 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 996438980 is about 31566.4217167547. The cubic root of 996438980 is about 998.8115815544.

The spelling of 996438980 in words is "nine hundred ninety-six million, four hundred thirty-eight thousand, nine hundred eighty".