392994833449 has 9 divisors (see below), whose sum is σ = 407032503397. Its totient is φ = 379425734464.

The previous prime is 392994833423. The next prime is 392994833453. The reversal of 392994833449 is 944338499293.

The square root of 392994833449 is 626893.

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

It can be written as a sum of positive squares in 4 ways, for example, as 40002000025 + 352992833424 = 200005^2 + 594132^2 .

It is not a de Polignac number, because 392994833449 - 2⁷ = 392994833321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (392994833249) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18169089 + ... + 18190705.

Almost surely, 2^392994833449 is an apocalyptic number.

392994833449 is the 626893-rd square number.

392994833449 is the 313447-th centered octagonal number.

It is an amenable number.

392994833449 is a deficient number, since it is larger than the sum of its proper divisors (14037669948).

392994833449 is an frugal number, since it uses more digits than its factorization.

392994833449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43292 (or 21646 counting only the distinct ones).

The product of its digits is 181398528, while the sum is 67.

The spelling of 392994833449 in words is "three hundred ninety-two billion, nine hundred ninety-four million, eight hundred thirty-three thousand, four hundred forty-nine".