730304432 has 120 divisors (see below), whose sum is σ = 1713336768. Its totient is φ = 298771200.

The previous prime is 730304381. The next prime is 730304453. The reversal of 730304432 is 234403037.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1278707 + ... + 1279277.

Almost surely, 2^730304432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730304432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856668384).

730304432 is an abundant number, since it is smaller than the sum of its proper divisors (983032336).

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

730304432 is a wasteful number, since it uses less digits than its factorization.

730304432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 730304432 is about 27024.1453518886. The cubic root of 730304432 is about 900.5364834348.

Adding to 730304432 its reverse (234403037), we get a palindrome (964707469).

The spelling of 730304432 in words is "seven hundred thirty million, three hundred four thousand, four hundred thirty-two".