2664630 has 64 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 695520.

The previous prime is 2664601. The next prime is 2664643. The reversal of 2664630 is 364662.

2664630 is a `hidden beast` number, since 26 + 6 + 4 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2664594 and 2664603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19101 + ... + 19239.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^2664630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2664630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3628800).

2664630 is an abundant number, since it is smaller than the sum of its proper divisors (4592970).

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

2664630 is a wasteful number, since it uses less digits than its factorization.

2664630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 2664630 is about 1632.3694434778. The cubic root of 2664630 is about 138.6369422337.

Subtracting from 2664630 its reverse (364662), we obtain a cube (2299968 = 132³).

The spelling of 2664630 in words is "two million, six hundred sixty-four thousand, six hundred thirty".