730415644 has 12 divisors (see below), whose sum is σ = 1460831344. Its totient is φ = 313035264.

The previous prime is 730415639. The next prime is 730415657. The reversal of 730415644 is 446514037.

730415644 is an admirable number.

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, 13043109 + ... + 13043164.

Almost surely, 2^730415644 is an apocalyptic number.

It is an amenable number.

730415644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

730415644 is a wasteful number, since it uses less digits than its factorization.

730415644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26086284 (or 26086282 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 730415644 is about 27026.2029149490. The cubic root of 730415644 is about 900.5821928566.

The spelling of 730415644 in words is "seven hundred thirty million, four hundred fifteen thousand, six hundred forty-four".