2642478 has 16 divisors (see below), whose sum is σ = 5360256. Its totient is φ = 868280.

The previous prime is 2642473. The next prime is 2642483. The reversal of 2642478 is 8742462.

It is an interprime number because it is at equal distance from previous prime (2642473) and next prime (2642483).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2676 + ... + 3527.

It is an arithmetic number, because the mean of its divisors is an integer number (335016).

2^2642478 is an apocalyptic number.

2642478 is an abundant number, since it is smaller than the sum of its proper divisors (2717778).

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

2642478 is a wasteful number, since it uses less digits than its factorization.

2642478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6279.

The product of its digits is 21504, while the sum is 33.

The square root of 2642478 is about 1625.5700538580. The cubic root of 2642478 is about 138.2516935745.

The spelling of 2642478 in words is "two million, six hundred forty-two thousand, four hundred seventy-eight".