2642442 has 16 divisors (see below), whose sum is σ = 5765472. Its totient is φ = 800720.

The previous prime is 2642389. The next prime is 2642449. The reversal of 2642442 is 2442462.

It is a d-powerful number, because it can be written as 2⁹ + 6 + 4 + 2¹⁹ + 4⁶ + 4⁷ + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (2642449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19953 + ... + 20084.

It is an arithmetic number, because the mean of its divisors is an integer number (360342).

2^2642442 is an apocalyptic number.

2642442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2642442 is an abundant number, since it is smaller than the sum of its proper divisors (3123030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2642442 is a wasteful number, since it uses less digits than its factorization.

2642442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40053.

The product of its digits is 3072, while the sum is 24.

The square root of 2642442 is about 1625.5589807817. The cubic root of 2642442 is about 138.2510657442.

The spelling of 2642442 in words is "two million, six hundred forty-two thousand, four hundred forty-two".