2639064 has 16 divisors (see below), whose sum is σ = 6597720. Its totient is φ = 879680.

The previous prime is 2639041. The next prime is 2639069. The reversal of 2639064 is 4609362.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54957 + ... + 55004.

2^2639064 is an apocalyptic number.

2639064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2639064 is an abundant number, since it is smaller than the sum of its proper divisors (3958656).

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

2639064 is a wasteful number, since it uses less digits than its factorization.

2639064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109970 (or 109966 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 2639064 is about 1624.5196213035. The cubic root of 2639064 is about 138.1921289419.

It can be divided in two parts, 263 and 9064, that multiplied together give a palindrome (2383832).

The spelling of 2639064 in words is "two million, six hundred thirty-nine thousand, sixty-four".