22791494 has 8 divisors (see below), whose sum is σ = 37295208. Its totient is φ = 10359760.

The previous prime is 22791473. The next prime is 22791529. The reversal of 22791494 is 49419722.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517967 + ... + 518010.

It is an arithmetic number, because the mean of its divisors is an integer number (4661901).

Almost surely, 2^22791494 is an apocalyptic number.

22791494 is a deficient number, since it is larger than the sum of its proper divisors (14503714).

22791494 is a wasteful number, since it uses less digits than its factorization.

22791494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035990.

The product of its digits is 36288, while the sum is 38.

The square root of 22791494 is about 4774.0437786011. The cubic root of 22791494 is about 283.5247208260.

It can be divided in two parts, 2279 and 1494, that added together give a palindrome (3773).

The spelling of 22791494 in words is "twenty-two million, seven hundred ninety-one thousand, four hundred ninety-four".