2642469 has 4 divisors (see below), whose sum is σ = 3523296. Its totient is φ = 1761644.

The previous prime is 2642449. The next prime is 2642473. The reversal of 2642469 is 9642462.

It is a happy number.

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 2642469 - 2¹⁵ = 2609701 is a prime.

It is a super-2 number, since 2×2642469² = 13965284831922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹³ + 6² + 4⁴ + 2²¹ + 4⁶ + 6⁴ + 9⁶ .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642449) 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, 440409 + ... + 440414.

It is an arithmetic number, because the mean of its divisors is an integer number (880824).

2^2642469 is an apocalyptic number.

It is an amenable number.

2642469 is a deficient number, since it is larger than the sum of its proper divisors (880827).

2642469 is an equidigital number, since it uses as much as digits as its factorization.

2642469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880826.

The product of its digits is 20736, while the sum is 33.

The square root of 2642469 is about 1625.5672855960. The cubic root of 2642469 is about 138.2515366174.

The spelling of 2642469 in words is "two million, six hundred forty-two thousand, four hundred sixty-nine".