22142090 has 8 divisors (see below), whose sum is σ = 39855780. Its totient is φ = 8856832.

The previous prime is 22142089. The next prime is 22142101. The reversal of 22142090 is 9024122.

It can be written as a sum of positive squares in 2 ways, for example, as 21780889 + 361201 = 4667^2 + 601^2 .

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, 1107095 + ... + 1107114.

Almost surely, 2^22142090 is an apocalyptic number.

22142090 is a deficient number, since it is larger than the sum of its proper divisors (17713690).

22142090 is a wasteful number, since it uses less digits than its factorization.

22142090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214216.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22142090 is about 4705.5382263881. The cubic root of 22142090 is about 280.8058840957.

The spelling of 22142090 in words is "twenty-two million, one hundred forty-two thousand, ninety".