2644074252 has 96 divisors (see below), whose sum is σ = 6965145600. Its totient is φ = 878124240.

The previous prime is 2644074241. The next prime is 2644074269. The reversal of 2644074252 is 2524704462.

2644074252 is a `hidden beast` number, since 2 + 644 + 0 + 7 + 4 + 2 + 5 + 2 = 666.

It is a super-2 number, since 2×2644074252² = 13982257300178719008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 31 ways as a sum of consecutive naturals, for example, 4189977 + ... + 4190607.

It is an arithmetic number, because the mean of its divisors is an integer number (72553600).

Almost surely, 2^2644074252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2644074252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3482572800).

2644074252 is an abundant number, since it is smaller than the sum of its proper divisors (4321071348).

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

2644074252 is an equidigital number, since it uses as much as digits as its factorization.

2644074252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The square root of 2644074252 is about 51420.5625406802. The cubic root of 2644074252 is about 1382.7952605102.

The spelling of 2644074252 in words is "two billion, six hundred forty-four million, seventy-four thousand, two hundred fifty-two".