22157246 has 8 divisors (see below), whose sum is σ = 33350184. Its totient is φ = 11040520.

The previous prime is 22157207. The next prime is 22157263. The reversal of 22157246 is 64275122.

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, 18320 + ... + 19491.

It is an arithmetic number, because the mean of its divisors is an integer number (4168773).

Almost surely, 2^22157246 is an apocalyptic number.

22157246 is a deficient number, since it is larger than the sum of its proper divisors (11192938).

22157246 is a wasteful number, since it uses less digits than its factorization.

22157246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38106.

The product of its digits is 6720, while the sum is 29.

The square root of 22157246 is about 4707.1483936668. The cubic root of 22157246 is about 280.8699389239.

The spelling of 22157246 in words is "twenty-two million, one hundred fifty-seven thousand, two hundred forty-six".