655239430 has 32 divisors (see below), whose sum is σ = 1214029440. Its totient is φ = 254517120.

The previous prime is 655239413. The next prime is 655239437. The reversal of 655239430 is 34932556.

It is a self number, because there is not a number n which added to its sum of digits gives 655239430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655239437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41392 + ... + 54988.

It is an arithmetic number, because the mean of its divisors is an integer number (37938420).

Almost surely, 2^655239430 is an apocalyptic number.

655239430 is a deficient number, since it is larger than the sum of its proper divisors (558790010).

655239430 is a wasteful number, since it uses less digits than its factorization.

655239430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13744.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 655239430 is about 25597.6450088675. The cubic root of 655239430 is about 868.5603662485.

The spelling of 655239430 in words is "six hundred fifty-five million, two hundred thirty-nine thousand, four hundred thirty".