2634645 has 32 divisors (see below), whose sum is σ = 4636800. Its totient is φ = 1269504.

The previous prime is 2634631. The next prime is 2634649. The reversal of 2634645 is 5464362.

It is not a de Polignac number, because 2634645 - 2⁴ = 2634629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2634649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11391 + ... + 11619.

It is an arithmetic number, because the mean of its divisors is an integer number (144900).

2^2634645 is an apocalyptic number.

It is an amenable number.

2634645 is a deficient number, since it is larger than the sum of its proper divisors (2002155).

2634645 is a wasteful number, since it uses less digits than its factorization.

2634645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309.

The product of its digits is 17280, while the sum is 30.

The square root of 2634645 is about 1623.1589570957. The cubic root of 2634645 is about 138.1149535768.

The spelling of 2634645 in words is "two million, six hundred thirty-four thousand, six hundred forty-five".