730394253 has 40 divisors (see below), whose sum is σ = 1119666240. Its totient is φ = 474344640.

The previous prime is 730394251. The next prime is 730394267. The reversal of 730394253 is 352493037.

It is not a de Polignac number, because 730394253 - 2¹ = 730394251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730394251) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 511126 + ... + 512552.

It is an arithmetic number, because the mean of its divisors is an integer number (27991656).

Almost surely, 2^730394253 is an apocalyptic number.

It is an amenable number.

730394253 is a deficient number, since it is larger than the sum of its proper divisors (389271987).

730394253 is a wasteful number, since it uses less digits than its factorization.

730394253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 730394253 is about 27025.8071664844. The cubic root of 730394253 is about 900.5734012680.

The spelling of 730394253 in words is "seven hundred thirty million, three hundred ninety-four thousand, two hundred fifty-three".