730831478 has 32 divisors (see below), whose sum is σ = 1212291360. Its totient is φ = 328285440.

The previous prime is 730831459. The next prime is 730831553. The reversal of 730831478 is 874138037.

It is a super-2 number, since 2×730831478² = 1068229298471328968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 881168 + ... + 881996.

It is an arithmetic number, because the mean of its divisors is an integer number (37884105).

Almost surely, 2^730831478 is an apocalyptic number.

730831478 is a deficient number, since it is larger than the sum of its proper divisors (481459882).

730831478 is a wasteful number, since it uses less digits than its factorization.

730831478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 730831478 is about 27033.8949838901. The cubic root of 730831478 is about 900.7530643568.

The spelling of 730831478 in words is "seven hundred thirty million, eight hundred thirty-one thousand, four hundred seventy-eight".