22994459 has 4 divisors (see below), whose sum is σ = 23006304. Its totient is φ = 22982616.

The previous prime is 22994453. The next prime is 22994479. The reversal of 22994459 is 95449922.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 95449922 = 2 ⋅47724961.

It is a cyclic number.

It is not a de Polignac number, because 22994459 - 2⁴ = 22994443 is a prime.

It is a super-3 number, since 3×22994459³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22994453) 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, 2252 + ... + 7145.

It is an arithmetic number, because the mean of its divisors is an integer number (5751576).

Almost surely, 2^22994459 is an apocalyptic number.

22994459 is a deficient number, since it is larger than the sum of its proper divisors (11845).

22994459 is an equidigital number, since it uses as much as digits as its factorization.

22994459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11844.

The product of its digits is 233280, while the sum is 44.

The square root of 22994459 is about 4795.2537993312. The cubic root of 22994459 is about 284.3638586626.

The spelling of 22994459 in words is "twenty-two million, nine hundred ninety-four thousand, four hundred fifty-nine".