730447740 has 96 divisors (see below), whose sum is σ = 2479115520. Its totient is φ = 177076800.

The previous prime is 730447717. The next prime is 730447769. The reversal of 730447740 is 47744037.

It is a super-2 number, since 2×730447740² = 1067107801742215200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 730447695 and 730447704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55546 + ... + 67425.

It is an arithmetic number, because the mean of its divisors is an integer number (25824120).

Almost surely, 2^730447740 is an apocalyptic number.

It is an amenable number.

730447740 is an abundant number, since it is smaller than the sum of its proper divisors (1748667780).

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

730447740 is a wasteful number, since it uses less digits than its factorization.

730447740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123000 (or 122992 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

The square root of 730447740 is about 27026.7967025321. The cubic root of 730447740 is about 900.5953838222.

The spelling of 730447740 in words is "seven hundred thirty million, four hundred forty-seven thousand, seven hundred forty".