2642669 has 8 divisors (see below), whose sum is σ = 2747520. Its totient is φ = 2539936.

The previous prime is 2642639. The next prime is 2642693. The reversal of 2642669 is 9662462.

2642669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2642669 - 2²⁰ = 1594093 is a prime.

It is a super-2 number, since 2×2642669² = 13967398887122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2297 + ... + 3249.

It is an arithmetic number, because the mean of its divisors is an integer number (343440).

2^2642669 is an apocalyptic number.

It is an amenable number.

2642669 is a deficient number, since it is larger than the sum of its proper divisors (104851).

2642669 is an equidigital number, since it uses as much as digits as its factorization.

2642669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059.

The product of its digits is 31104, while the sum is 35.

The square root of 2642669 is about 1625.6288014181. The cubic root of 2642669 is about 138.2550244679.

The spelling of 2642669 in words is "two million, six hundred forty-two thousand, six hundred sixty-nine".