22049659 has 4 divisors (see below), whose sum is σ = 22101016. Its totient is φ = 21998304.

The previous prime is 22049641. The next prime is 22049681. The reversal of 22049659 is 95694022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95694022 = 2 ⋅47847011.

It is a cyclic number.

It is not a de Polignac number, because 22049659 - 2⁹ = 22049147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22049059) 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, 25029 + ... + 25894.

It is an arithmetic number, because the mean of its divisors is an integer number (5525254).

Almost surely, 2^22049659 is an apocalyptic number.

22049659 is a deficient number, since it is larger than the sum of its proper divisors (51357).

22049659 is an equidigital number, since it uses as much as digits as its factorization.

22049659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51356.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 22049659 is about 4695.7064431244. The cubic root of 22049659 is about 280.4146026218.

The spelling of 22049659 in words is "twenty-two million, forty-nine thousand, six hundred fifty-nine".