2662664 has 32 divisors (see below), whose sum is σ = 5400000. Its totient is φ = 1227072.

The previous prime is 2662661. The next prime is 2662669. The reversal of 2662664 is 4662662.

2662664 = T₄₅₉ + T₄₆₀ + ... + T₄₈₂.

It is a d-powerful number, because it can be written as 2⁵ + 6³ + 6⁴ + 2²¹ + 6⁷ + 6⁷ + 4⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 2662664.

It is not an unprimeable number, because it can be changed into a prime (2662661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5087 + ... + 5585.

It is an arithmetic number, because the mean of its divisors is an integer number (168750).

2^2662664 is an apocalyptic number.

It is an amenable number.

2662664 is an abundant number, since it is smaller than the sum of its proper divisors (2737336).

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

2662664 is a wasteful number, since it uses less digits than its factorization.

2662664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 553 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 2662664 is about 1631.7671402501. The cubic root of 2662664 is about 138.6028377753.

The spelling of 2662664 in words is "two million, six hundred sixty-two thousand, six hundred sixty-four".