730140636 has 12 divisors (see below), whose sum is σ = 1703661512. Its totient is φ = 243380208.

The previous prime is 730140617. The next prime is 730140643. The reversal of 730140636 is 636041037.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30422515 + ... + 30422538.

Almost surely, 2^730140636 is an apocalyptic number.

It is an amenable number.

730140636 is an abundant number, since it is smaller than the sum of its proper divisors (973520876).

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

730140636 is a wasteful number, since it uses less digits than its factorization.

730140636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60845060 (or 60845058 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 730140636 is about 27021.1146328200. The cubic root of 730140636 is about 900.4691529278.

The spelling of 730140636 in words is "seven hundred thirty million, one hundred forty thousand, six hundred thirty-six".