22149574 has 8 divisors (see below), whose sum is σ = 33259968. Its totient is φ = 11062920.

The previous prime is 22149571. The next prime is 22149577. The reversal of 22149574 is 47594122.

It is an interprime number because it is at equal distance from previous prime (22149571) and next prime (22149577).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22149571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3382 + ... + 7465.

It is an arithmetic number, because the mean of its divisors is an integer number (4157496).

Almost surely, 2^22149574 is an apocalyptic number.

22149574 is a deficient number, since it is larger than the sum of its proper divisors (11110394).

22149574 is a wasteful number, since it uses less digits than its factorization.

22149574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11870.

The product of its digits is 20160, while the sum is 34.

The square root of 22149574 is about 4706.3333923555. Note that the first 4 decimals coincide. The cubic root of 22149574 is about 280.8375178832.

The spelling of 22149574 in words is "twenty-two million, one hundred forty-nine thousand, five hundred seventy-four".