22420678 has 8 divisors (see below), whose sum is σ = 38435472. Its totient is φ = 9608856.

The previous prime is 22420667. The next prime is 22420693. The reversal of 22420678 is 87602422.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800725 + ... + 800752.

It is an arithmetic number, because the mean of its divisors is an integer number (4804434).

Almost surely, 2^22420678 is an apocalyptic number.

22420678 is a deficient number, since it is larger than the sum of its proper divisors (16014794).

22420678 is a wasteful number, since it uses less digits than its factorization.

22420678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601486.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 22420678 is about 4735.0478350276. The cubic root of 22420678 is about 281.9786631074.

It can be divided in two parts, 224 and 20678, that added together give a palindrome (20902).

The spelling of 22420678 in words is "twenty-two million, four hundred twenty thousand, six hundred seventy-eight".