996192640 has 32 divisors (see below), whose sum is σ = 2381524560. Its totient is φ = 398476800.

The previous prime is 996192599. The next prime is 996192641. The reversal of 996192640 is 46291699.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996192641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777636 + ... + 778915.

Almost surely, 2^996192640 is an apocalyptic number.

It is an amenable number.

996192640 is an abundant number, since it is smaller than the sum of its proper divisors (1385331920).

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

996192640 is a wasteful number, since it uses less digits than its factorization.

996192640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556570 (or 1556558 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 996192640 is about 31562.5195445484. The cubic root of 996192640 is about 998.7292659189.

The spelling of 996192640 in words is "nine hundred ninety-six million, one hundred ninety-two thousand, six hundred forty".