730417280 has 32 divisors (see below), whose sum is σ = 1746155340. Its totient is φ = 292166656.

The previous prime is 730417277. The next prime is 730417283. The reversal of 730417280 is 82714037.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (730417277) and next prime (730417283).

It can be written as a sum of positive squares in 2 ways, for example, as 687278656 + 43138624 = 26216^2 + 6568^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (730417283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569999 + ... + 571278.

Almost surely, 2^730417280 is an apocalyptic number.

It is an amenable number.

730417280 is an abundant number, since it is smaller than the sum of its proper divisors (1015738060).

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

730417280 is a wasteful number, since it uses less digits than its factorization.

730417280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141296 (or 1141284 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 730417280 is about 27026.2331818550. The cubic root of 730417280 is about 900.5828652370.

The spelling of 730417280 in words is "seven hundred thirty million, four hundred seventeen thousand, two hundred eighty".