22940149 has 4 divisors (see below), whose sum is σ = 23373036. Its totient is φ = 22507264.

The previous prime is 22940147. The next prime is 22940161. The reversal of 22940149 is 94104922.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12744900 + 10195249 = 3570^2 + 3193^2 .

It is a cyclic number.

It is not a de Polignac number, because 22940149 - 2¹ = 22940147 is a prime.

It is a super-2 number, since 2×22940149² = 1052500872284402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22940149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940147) 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, 216364 + ... + 216469.

It is an arithmetic number, because the mean of its divisors is an integer number (5843259).

Almost surely, 2^22940149 is an apocalyptic number.

It is an amenable number.

22940149 is a deficient number, since it is larger than the sum of its proper divisors (432887).

22940149 is an equidigital number, since it uses as much as digits as its factorization.

22940149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432886.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 22940149 is about 4789.5875605317. The cubic root of 22940149 is about 284.1398050343.

The spelling of 22940149 in words is "twenty-two million, nine hundred forty thousand, one hundred forty-nine".