2397780772 has 36 divisors (see below), whose sum is σ = 4451596380. Its totient is φ = 1129891392.

The previous prime is 2397780767. The next prime is 2397780851. The reversal of 2397780772 is 2770877932.

It can be written as a sum of positive squares in 2 ways, for example, as 1525996096 + 871784676 = 39064^2 + 29526^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280254 + ... + 288682.

It is an arithmetic number, because the mean of its divisors is an integer number (123655455).

Almost surely, 2^2397780772 is an apocalyptic number.

It is an amenable number.

2397780772 is a deficient number, since it is larger than the sum of its proper divisors (2053815608).

2397780772 is a wasteful number, since it uses less digits than its factorization.

2397780772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8668 (or 8647 counting only the distinct ones).

The product of its (nonzero) digits is 2074464, while the sum is 52.

The square root of 2397780772 is about 48967.1397163445. The cubic root of 2397780772 is about 1338.4530994725.

The spelling of 2397780772 in words is "two billion, three hundred ninety-seven million, seven hundred eighty thousand, seven hundred seventy-two".