2791622420 has 12 divisors (see below), whose sum is σ = 5862407124. Its totient is φ = 1116648960.

The previous prime is 2791622381. The next prime is 2791622441. The reversal of 2791622420 is 242261972.

It can be written as a sum of positive squares in 2 ways, for example, as 1911788176 + 879834244 = 43724^2 + 29662^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69790541 + ... + 69790580.

It is an arithmetic number, because the mean of its divisors is an integer number (488533927).

Almost surely, 2^2791622420 is an apocalyptic number.

2791622420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2791622420 is an abundant number, since it is smaller than the sum of its proper divisors (3070784704).

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

2791622420 is a wasteful number, since it uses less digits than its factorization.

2791622420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139581130 (or 139581128 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 2791622420 is about 52835.8062302450. The cubic root of 2791622420 is about 1408.0526443008.

The spelling of 2791622420 in words is "two billion, seven hundred ninety-one million, six hundred twenty-two thousand, four hundred twenty".