296431390455489 has 27 divisors (see below), whose sum is σ = 442438835630337. Its totient is φ = 191245025327400.

The previous prime is 296431390455469. The next prime is 296431390455553. The reversal of 296431390455489 is 984554093134692.

It is a happy number.

The square root of 296431390455489 is 17217183.

It is a perfect power (a square), and thus also a powerful number.

296431390455489 is a `hidden beast` number, since 2 + 9 + 6 + 4 + 3 + 1 + 3 + 90 + 4 + 55 + 489 = 666.

It is not a de Polignac number, because 296431390455489 - 2¹¹ = 296431390453441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (296431390455469) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1601105454 + ... + 1601290584.

Almost surely, 2^{296431390455489} is an apocalyptic number.

296431390455489 is the 17217183-rd square number.

296431390455489 is the 8608592-nd centered octagonal number.

It is an amenable number.

296431390455489 is a deficient number, since it is larger than the sum of its proper divisors (146007445174848).

296431390455489 is an frugal number, since it uses more digits than its factorization.

296431390455489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370330 (or 185165 counting only the distinct ones).

The product of its (nonzero) digits is 1007769600, while the sum is 72.

The spelling of 296431390455489 in words is "two hundred ninety-six trillion, four hundred thirty-one billion, three hundred ninety million, four hundred fifty-five thousand, four hundred eighty-nine".