730646378 has 48 divisors (see below), whose sum is σ = 1412188992. Its totient is φ = 275428800.

The previous prime is 730646377. The next prime is 730646381. The reversal of 730646378 is 873646037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730646377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145526 + ... + 150462.

It is an arithmetic number, because the mean of its divisors is an integer number (29420604).

Almost surely, 2^730646378 is an apocalyptic number.

730646378 is a deficient number, since it is larger than the sum of its proper divisors (681542614).

730646378 is a wasteful number, since it uses less digits than its factorization.

730646378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019 (or 4988 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 730646378 is about 27030.4712870494. The cubic root of 730646378 is about 900.6770124099.

The spelling of 730646378 in words is "seven hundred thirty million, six hundred forty-six thousand, three hundred seventy-eight".