2297944478 has 4 divisors (see below), whose sum is σ = 3446916720. Its totient is φ = 1148972238.

The previous prime is 2297944463. The next prime is 2297944487. The reversal of 2297944478 is 8744497922.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574486118 + ... + 574486121.

It is an arithmetic number, because the mean of its divisors is an integer number (861729180).

Almost surely, 2^2297944478 is an apocalyptic number.

2297944478 is a deficient number, since it is larger than the sum of its proper divisors (1148972242).

2297944478 is a wasteful number, since it uses less digits than its factorization.

2297944478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148972241.

The product of its digits is 8128512, while the sum is 56.

The square root of 2297944478 is about 47936.8801446235. The cubic root of 2297944478 is about 1319.6127724738.

The spelling of 2297944478 in words is "two billion, two hundred ninety-seven million, nine hundred forty-four thousand, four hundred seventy-eight".