2645269 has 4 divisors (see below), whose sum is σ = 2885760. Its totient is φ = 2404780.

The previous prime is 2645267. The next prime is 2645297. The reversal of 2645269 is 9625462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2645269 - 2¹ = 2645267 is a prime.

It is a super-2 number, since 2×2645269² = 13994896164722, which contains 22 as substring.

It is a Duffinian number.

2645269 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645263) 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, 120229 + ... + 120250.

It is an arithmetic number, because the mean of its divisors is an integer number (721440).

2^2645269 is an apocalyptic number.

It is an amenable number.

2645269 is a deficient number, since it is larger than the sum of its proper divisors (240491).

2645269 is a wasteful number, since it uses less digits than its factorization.

2645269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240490.

The product of its digits is 25920, while the sum is 34.

The square root of 2645269 is about 1626.4282953761. The cubic root of 2645269 is about 138.3003505178.

The spelling of 2645269 in words is "two million, six hundred forty-five thousand, two hundred sixty-nine".