22916449 has 4 divisors (see below), whose sum is σ = 23011780. Its totient is φ = 22821120.

The previous prime is 22916447. The next prime is 22916461. The reversal of 22916449 is 94461922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94461922 = 2 ⋅47230961.

It can be written as a sum of positive squares in 2 ways, for example, as 20793600 + 2122849 = 4560^2 + 1457^2 .

It is a cyclic number.

It is not a de Polignac number, because 22916449 - 2¹ = 22916447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22916447) 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, 47304 + ... + 47785.

It is an arithmetic number, because the mean of its divisors is an integer number (5752945).

Almost surely, 2^22916449 is an apocalyptic number.

It is an amenable number.

22916449 is a deficient number, since it is larger than the sum of its proper divisors (95331).

22916449 is an equidigital number, since it uses as much as digits as its factorization.

22916449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95330.

The product of its digits is 31104, while the sum is 37.

The square root of 22916449 is about 4787.1128041858. The cubic root of 22916449 is about 284.0419208435.

The spelling of 22916449 in words is "twenty-two million, nine hundred sixteen thousand, four hundred forty-nine".