2102664 has 32 divisors (see below), whose sum is σ = 5328000. Its totient is φ = 691392.

The previous prime is 2102651. The next prime is 2102687. The reversal of 2102664 is 4662012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102664.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (166500).

2^2102664 is an apocalyptic number.

2102664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2102664 is an abundant number, since it is smaller than the sum of its proper divisors (3225336).

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

2102664 is a wasteful number, since it uses less digits than its factorization.

2102664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2102664 is about 1450.0565506214. The cubic root of 2102664 is about 128.1120438218.

Adding to 2102664 its reverse (4662012), we get a palindrome (6764676).

The spelling of 2102664 in words is "two million, one hundred two thousand, six hundred sixty-four".