730079428 has 24 divisors (see below), whose sum is σ = 1383538520. Its totient is φ = 335093760.

The previous prime is 730079423. The next prime is 730079429. The reversal of 730079428 is 824970037.

It can be written as a sum of positive squares in 4 ways, for example, as 19430464 + 710648964 = 4408^2 + 26658^2 .

It is not an unprimeable number, because it can be changed into a prime (730079423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29373 + ... + 48196.

Almost surely, 2^730079428 is an apocalyptic number.

It is an amenable number.

730079428 is a deficient number, since it is larger than the sum of its proper divisors (653459092).

730079428 is a wasteful number, since it uses less digits than its factorization.

730079428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77767 (or 77765 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 730079428 is about 27019.9820133175. The cubic root of 730079428 is about 900.4439899874.

The spelling of 730079428 in words is "seven hundred thirty million, seventy-nine thousand, four hundred twenty-eight".