2644604604 has 72 divisors (see below), whose sum is σ = 7106670480. Its totient is φ = 826848000.

The previous prime is 2644604597. The next prime is 2644604621. The reversal of 2644604604 is 4064064462.

It is a happy number.

2644604604 is a `hidden beast` number, since 2 + 6 + 4 + 46 + 0 + 4 + 604 = 666.

It is a super-2 number, since 2×2644604604² = 13987867022995993632, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49944 + ... + 88224.

Almost surely, 2^2644604604 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 2644604604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3553335240).

2644604604 is an abundant number, since it is smaller than the sum of its proper divisors (4462065876).

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

2644604604 is a wasteful number, since it uses less digits than its factorization.

2644604604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38411 (or 38406 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 2644604604 is about 51425.7192851981. The cubic root of 2644604604 is about 1382.8877086457.

The spelling of 2644604604 in words is "two billion, six hundred forty-four million, six hundred four thousand, six hundred four".