730478916 has 144 divisors (see below), whose sum is σ = 2040030720. Its totient is φ = 219386880.

The previous prime is 730478897. The next prime is 730478923. The reversal of 730478916 is 619874037.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2636970 + ... + 2637246.

It is an arithmetic number, because the mean of its divisors is an integer number (14166880).

Almost surely, 2^730478916 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 730478916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020015360).

730478916 is an abundant number, since it is smaller than the sum of its proper divisors (1309551804).

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

730478916 is a wasteful number, since it uses less digits than its factorization.

730478916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 730478916 is about 27027.3734572933. The cubic root of 730478916 is about 900.6081963118.

The spelling of 730478916 in words is "seven hundred thirty million, four hundred seventy-eight thousand, nine hundred sixteen".