2799400365 has 64 divisors (see below), whose sum is σ = 5083027200. Its totient is φ = 1461411072.

The previous prime is 2799400327. The next prime is 2799400367. The reversal of 2799400365 is 5630049972.

It is a happy number.

It is not a de Polignac number, because 2799400365 - 2¹¹ = 2799398317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2799400365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2799400367) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1563891 + ... + 1565679.

It is an arithmetic number, because the mean of its divisors is an integer number (79422300).

Almost surely, 2^2799400365 is an apocalyptic number.

It is an amenable number.

2799400365 is a deficient number, since it is larger than the sum of its proper divisors (2283626835).

2799400365 is a wasteful number, since it uses less digits than its factorization.

2799400365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 2799400365 is about 52909.3598997380. The cubic root of 2799400365 is about 1409.3591247780.

The spelling of 2799400365 in words is "two billion, seven hundred ninety-nine million, four hundred thousand, three hundred sixty-five".