672785280 has 96 divisors (see below), whose sum is σ = 2323231560. Its totient is φ = 179407872.

The previous prime is 672785273. The next prime is 672785329. The reversal of 672785280 is 82587276.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 52642 + ... + 64161.

Almost surely, 2^672785280 is an apocalyptic number.

672785280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672785280 is an abundant number, since it is smaller than the sum of its proper divisors (1650446280).

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

672785280 is a wasteful number, since it uses less digits than its factorization.

672785280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116828 (or 116813 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 672785280 is about 25938.1047881298. The cubic root of 672785280 is about 876.2448805598.

The spelling of 672785280 in words is "six hundred seventy-two million, seven hundred eighty-five thousand, two hundred eighty".