2799422640 has 320 divisors, whose sum is σ = 11669253120. Its totient is φ = 602173440.

The previous prime is 2799422629. The next prime is 2799422651. The reversal of 2799422640 is 462249972.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2799422629) and next prime (2799422651).

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

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 63 ways as a sum of consecutive naturals, for example, 251595 + ... + 262485.

It is an arithmetic number, because the mean of its divisors is an integer number (36466416).

Almost surely, 2^2799422640 is an apocalyptic number.

2799422640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2799422640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5834626560).

2799422640 is an abundant number, since it is smaller than the sum of its proper divisors (8869830480).

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

2799422640 is a wasteful number, since it uses less digits than its factorization.

2799422640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10937 (or 10925 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 2799422640 is about 52909.5704008264. The cubic root of 2799422640 is about 1409.3628628870.

The spelling of 2799422640 in words is "two billion, seven hundred ninety-nine million, four hundred twenty-two thousand, six hundred forty".