672498816 has 64 divisors (see below), whose sum is σ = 1948730400. Its totient is φ = 203786240.

The previous prime is 672498781. The next prime is 672498823. The reversal of 672498816 is 618894276.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75381 + ... + 83828.

Almost surely, 2^672498816 is an apocalyptic number.

672498816 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

672498816 is an abundant number, since it is smaller than the sum of its proper divisors (1276231584).

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

672498816 is a wasteful number, since it uses less digits than its factorization.

672498816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159237 (or 159225 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 672498816 is about 25932.5821313652. The cubic root of 672498816 is about 876.1204980089.

The spelling of 672498816 in words is "six hundred seventy-two million, four hundred ninety-eight thousand, eight hundred sixteen".