2644254630 has 72 divisors (see below), whose sum is σ = 7303338432. Its totient is φ = 663649536.

The previous prime is 2644254619. The next prime is 2644254637. The reversal of 2644254630 is 364524462.

2644254630 is a `hidden beast` number, since 2 + 644 + 2 + 5 + 4 + 6 + 3 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644254637) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24822 + ... + 76841.

It is an arithmetic number, because the mean of its divisors is an integer number (101435256).

Almost surely, 2^2644254630 is an apocalyptic number.

2644254630 is an abundant number, since it is smaller than the sum of its proper divisors (4659083802).

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

2644254630 is a wasteful number, since it uses less digits than its factorization.

2644254630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101710 (or 101690 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 2644254630 is about 51422.3164589072. The cubic root of 2644254630 is about 1382.8267044294.

The spelling of 2644254630 in words is "two billion, six hundred forty-four million, two hundred fifty-four thousand, six hundred thirty".