672722140 has 24 divisors (see below), whose sum is σ = 1417550400. Its totient is φ = 268168128.

The previous prime is 672722131. The next prime is 672722153. The reversal of 672722140 is 41227276.

It is a super-3 number, since 3×672722140³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

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, 51540 + ... + 63259.

It is an arithmetic number, because the mean of its divisors is an integer number (59064600).

Almost surely, 2^672722140 is an apocalyptic number.

It is an amenable number.

672722140 is an abundant number, since it is smaller than the sum of its proper divisors (744828260).

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

672722140 is a wasteful number, since it uses less digits than its factorization.

672722140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115101 (or 115099 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 672722140 is about 25936.8876313254. The cubic root of 672722140 is about 876.2174682317.

The spelling of 672722140 in words is "six hundred seventy-two million, seven hundred twenty-two thousand, one hundred forty".