22738778 has 8 divisors (see below), whose sum is σ = 34155840. Its totient is φ = 11353500.

The previous prime is 22738759. The next prime is 22738783. The reversal of 22738778 is 87783722.

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

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, 6068 + ... + 9071.

It is an arithmetic number, because the mean of its divisors is an integer number (4269480).

Almost surely, 2^22738778 is an apocalyptic number.

22738778 is a deficient number, since it is larger than the sum of its proper divisors (11417062).

22738778 is a wasteful number, since it uses less digits than its factorization.

22738778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15892.

The product of its digits is 263424, while the sum is 44.

The square root of 22738778 is about 4768.5194767349. The cubic root of 22738778 is about 283.3059575242.

The spelling of 22738778 in words is "twenty-two million, seven hundred thirty-eight thousand, seven hundred seventy-eight".