22649438 has 8 divisors (see below), whose sum is σ = 38827632. Its totient is φ = 9706896.

The previous prime is 22649413. The next prime is 22649477. The reversal of 22649438 is 83494622.

It is a happy number.

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, 808895 + ... + 808922.

It is an arithmetic number, because the mean of its divisors is an integer number (4853454).

Almost surely, 2^22649438 is an apocalyptic number.

22649438 is a deficient number, since it is larger than the sum of its proper divisors (16178194).

22649438 is a wasteful number, since it uses less digits than its factorization.

22649438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617826.

The product of its digits is 82944, while the sum is 38.

The square root of 22649438 is about 4759.1425698334. The cubic root of 22649438 is about 282.9344369008.

The spelling of 22649438 in words is "twenty-two million, six hundred forty-nine thousand, four hundred thirty-eight".