24678642 has 16 divisors (see below), whose sum is σ = 49463712. Its totient is φ = 8208480.

The previous prime is 24678631. The next prime is 24678649. The reversal of 24678642 is 24687642.

It is a self number, because there is not a number n which added to its sum of digits gives 24678642.

It is not an unprimeable number, because it can be changed into a prime (24678649) 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, 1243 + ... + 7134.

It is an arithmetic number, because the mean of its divisors is an integer number (3091482).

Almost surely, 2^24678642 is an apocalyptic number.

24678642 is an abundant number, since it is smaller than the sum of its proper divisors (24785070).

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

24678642 is a wasteful number, since it uses less digits than its factorization.

24678642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873.

The product of its digits is 129024, while the sum is 39.

The square root of 24678642 is about 4967.7602599159. The cubic root of 24678642 is about 291.1434915433.

The spelling of 24678642 in words is "twenty-four million, six hundred seventy-eight thousand, six hundred forty-two".