2978245392 has 40 divisors (see below), whose sum is σ = 7941991680. Its totient is φ = 960723840.

The previous prime is 2978245337. The next prime is 2978245397. The reversal of 2978245392 is 2935428792.

It is a super-2 number, since 2×2978245392² = 17739891229938467328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2978245397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999267 + ... + 1002242.

It is an arithmetic number, because the mean of its divisors is an integer number (198549792).

Almost surely, 2^2978245392 is an apocalyptic number.

It is an amenable number.

2978245392 is an abundant number, since it is smaller than the sum of its proper divisors (4963746288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2978245392 is a wasteful number, since it uses less digits than its factorization.

2978245392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001551 (or 2001545 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 2978245392 is about 54573.3029236824. The cubic root of 2978245392 is about 1438.7549345934.

The spelling of 2978245392 in words is "two billion, nine hundred seventy-eight million, two hundred forty-five thousand, three hundred ninety-two".