2642169 has 4 divisors (see below), whose sum is σ = 3522896. Its totient is φ = 1761444.

The previous prime is 2642149. The next prime is 2642173. The reversal of 2642169 is 9612462.

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 not a de Polignac number, because 2642169 - 2⁵ = 2642137 is a prime.

It is a super-2 number, since 2×2642169² = 13962114049122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2642149) 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, 440359 + ... + 440364.

It is an arithmetic number, because the mean of its divisors is an integer number (880724).

2^2642169 is an apocalyptic number.

It is an amenable number.

2642169 is a deficient number, since it is larger than the sum of its proper divisors (880727).

2642169 is an equidigital number, since it uses as much as digits as its factorization.

2642169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880726.

The product of its digits is 5184, while the sum is 30.

The square root of 2642169 is about 1625.4750074978. The cubic root of 2642169 is about 138.2463045118.

It can be divided in two parts, 26 and 42169, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 2642169 in words is "two million, six hundred forty-two thousand, one hundred sixty-nine".