730294656 has 128 divisors (see below), whose sum is σ = 2387616000. Its totient is φ = 192595968.

The previous prime is 730294651. The next prime is 730294661. The reversal of 730294656 is 656492037.

It is an interprime number because it is at equal distance from previous prime (730294651) and next prime (730294661).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730294651) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24495 + ... + 45393.

It is an arithmetic number, because the mean of its divisors is an integer number (18653250).

Almost surely, 2^730294656 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 730294656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1193808000).

730294656 is an abundant number, since it is smaller than the sum of its proper divisors (1657321344).

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

730294656 is a wasteful number, since it uses less digits than its factorization.

730294656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20936 (or 20924 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 730294656 is about 27023.9644759980. The cubic root of 730294656 is about 900.5324651635.

The spelling of 730294656 in words is "seven hundred thirty million, two hundred ninety-four thousand, six hundred fifty-six".