672510740 has 36 divisors (see below), whose sum is σ = 1552338228. Its totient is φ = 244548480.

The previous prime is 672510721. The next prime is 672510743. The reversal of 672510740 is 47015276.

It can be written as a sum of positive squares in 2 ways, for example, as 339886096 + 332624644 = 18436^2 + 18238^2 .

It is a junction number, because it is equal to n+sod(n) for n = 672510697 and 672510706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672510743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136529 + ... + 141368.

Almost surely, 2^672510740 is an apocalyptic number.

It is an amenable number.

672510740 is an abundant number, since it is smaller than the sum of its proper divisors (879827488).

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

672510740 is a wasteful number, since it uses less digits than its factorization.

672510740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277928 (or 277915 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 672510740 is about 25932.8120341779. The cubic root of 672510740 is about 876.1256761093.

The spelling of 672510740 in words is "six hundred seventy-two million, five hundred ten thousand, seven hundred forty".