2391643376 has 20 divisors (see below), whose sum is σ = 4634567952. Its totient is φ = 1195625856.

The previous prime is 2391643361. The next prime is 2391643379. The reversal of 2391643376 is 6733461932.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391643379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180101 + ... + 192923.

Almost surely, 2^2391643376 is an apocalyptic number.

It is an amenable number.

2391643376 is a deficient number, since it is larger than the sum of its proper divisors (2242924576).

2391643376 is a wasteful number, since it uses less digits than its factorization.

2391643376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24488 (or 24482 counting only the distinct ones).

The product of its digits is 489888, while the sum is 44.

The square root of 2391643376 is about 48904.4310466853. The cubic root of 2391643376 is about 1337.3101488004.

The spelling of 2391643376 in words is "two billion, three hundred ninety-one million, six hundred forty-three thousand, three hundred seventy-six".