672476640 has 96 divisors (see below), whose sum is σ = 2310892416. Its totient is φ = 163023360.

The previous prime is 672476603. The next prime is 672476641. The reversal of 672476640 is 46674276.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 672476592 and 672476601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672476641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58402 + ... + 68961.

It is an arithmetic number, because the mean of its divisors is an integer number (24071796).

Almost surely, 2^672476640 is an apocalyptic number.

672476640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672476640 is an abundant number, since it is smaller than the sum of its proper divisors (1638415776).

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

672476640 is a wasteful number, since it uses less digits than its factorization.

672476640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127392 (or 127384 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 672476640 is about 25932.1545576144. The cubic root of 672476640 is about 876.1108677259.

The spelling of 672476640 in words is "six hundred seventy-two million, four hundred seventy-six thousand, six hundred forty".