22878742 has 8 divisors (see below), whose sum is σ = 34362000. Its totient is φ = 11424744.

The previous prime is 22878727. The next prime is 22878743. The reversal of 22878742 is 24787822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22878695 and 22878704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22878743) 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, 5242 + ... + 8557.

It is an arithmetic number, because the mean of its divisors is an integer number (4295250).

Almost surely, 2^22878742 is an apocalyptic number.

22878742 is a deficient number, since it is larger than the sum of its proper divisors (11483258).

22878742 is a wasteful number, since it uses less digits than its factorization.

22878742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14630.

The product of its digits is 100352, while the sum is 40.

The square root of 22878742 is about 4783.1727963769. The cubic root of 22878742 is about 283.8860466589.

The spelling of 22878742 in words is "twenty-two million, eight hundred seventy-eight thousand, seven hundred forty-two".