22150642 has 8 divisors (see below), whose sum is σ = 34124076. Its totient is φ = 10775952.

The previous prime is 22150591. The next prime is 22150691. The reversal of 22150642 is 24605122.

It can be written as a sum of positive squares in 2 ways, for example, as 22005481 + 145161 = 4691^2 + 381^2 .

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

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, 149593 + ... + 149740.

Almost surely, 2^22150642 is an apocalyptic number.

22150642 is a deficient number, since it is larger than the sum of its proper divisors (11973434).

22150642 is a wasteful number, since it uses less digits than its factorization.

22150642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299372.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 22150642 is about 4706.4468551127. The cubic root of 22150642 is about 280.8420315840.

Adding to 22150642 its reverse (24605122), we get a palindrome (46755764).

The spelling of 22150642 in words is "twenty-two million, one hundred fifty thousand, six hundred forty-two".