730631868 has 12 divisors (see below), whose sum is σ = 1704807720. Its totient is φ = 243543952.

The previous prime is 730631813. The next prime is 730631911. The reversal of 730631868 is 868136037.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30442983 + ... + 30443006.

It is an arithmetic number, because the mean of its divisors is an integer number (142067310).

Almost surely, 2^730631868 is an apocalyptic number.

It is an amenable number.

730631868 is an abundant number, since it is smaller than the sum of its proper divisors (974175852).

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

730631868 is a wasteful number, since it uses less digits than its factorization.

730631868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60885996 (or 60885994 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 730631868 is about 27030.2028849212. The cubic root of 730631868 is about 900.6710501504.

The spelling of 730631868 in words is "seven hundred thirty million, six hundred thirty-one thousand, eight hundred sixty-eight".