22459451 has 4 divisors (see below), whose sum is σ = 25667952. Its totient is φ = 19250952.

The previous prime is 22459447. The next prime is 22459457. The reversal of 22459451 is 15495422.

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

It is not a de Polignac number, because 22459451 - 2² = 22459447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22459457) 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, 1604240 + ... + 1604253.

It is an arithmetic number, because the mean of its divisors is an integer number (6416988).

Almost surely, 2^22459451 is an apocalyptic number.

22459451 is a deficient number, since it is larger than the sum of its proper divisors (3208501).

22459451 is an equidigital number, since it uses as much as digits as its factorization.

22459451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208500.

The product of its digits is 14400, while the sum is 32.

The square root of 22459451 is about 4739.1403228856. The cubic root of 22459451 is about 282.1411152623.

The spelling of 22459451 in words is "twenty-two million, four hundred fifty-nine thousand, four hundred fifty-one".