730505894 has 8 divisors (see below), whose sum is σ = 1097938800. Its totient is φ = 364526296.

The previous prime is 730505851. The next prime is 730505899. The reversal of 730505894 is 498505037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×730505894² = 1067277722337478472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730505899) 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, 362069 + ... + 364080.

It is an arithmetic number, because the mean of its divisors is an integer number (137242350).

Almost surely, 2^730505894 is an apocalyptic number.

730505894 is a deficient number, since it is larger than the sum of its proper divisors (367432906).

730505894 is a wasteful number, since it uses less digits than its factorization.

730505894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726654.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 730505894 is about 27027.8725392880. The cubic root of 730505894 is about 900.6192832431.

The spelling of 730505894 in words is "seven hundred thirty million, five hundred five thousand, eight hundred ninety-four".