22640374 has 16 divisors (see below), whose sum is σ = 35111088. Its totient is φ = 10940832.

The previous prime is 22640369. The next prime is 22640389. The reversal of 22640374 is 47304622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11124 + ... + 13000.

It is an arithmetic number, because the mean of its divisors is an integer number (2194443).

Almost surely, 2^22640374 is an apocalyptic number.

22640374 is a deficient number, since it is larger than the sum of its proper divisors (12470714).

22640374 is a wasteful number, since it uses less digits than its factorization.

22640374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 22640374 is about 4758.1902021672. The cubic root of 22640374 is about 282.8966896815.

Adding to 22640374 its reverse (47304622), we get a palindrome (69944996).

The spelling of 22640374 in words is "twenty-two million, six hundred forty thousand, three hundred seventy-four".