730368240 has 80 divisors (see below), whose sum is σ = 2587596288. Its totient is φ = 166940928.

The previous prime is 730368217. The next prime is 730368307. The reversal of 730368240 is 42863037.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215692 + ... + 219051.

Almost surely, 2^730368240 is an apocalyptic number.

730368240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

730368240 is an abundant number, since it is smaller than the sum of its proper divisors (1857228048).

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

730368240 is a wasteful number, since it uses less digits than its factorization.

730368240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434766 (or 434760 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 730368240 is about 27025.3258999776. The cubic root of 730368240 is about 900.5627098302.

The spelling of 730368240 in words is "seven hundred thirty million, three hundred sixty-eight thousand, two hundred forty".