22454457 has 8 divisors (see below), whose sum is σ = 30504384. Its totient is φ = 14687088.

The previous prime is 22454431. The next prime is 22454459. The reversal of 22454457 is 75445422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22454457 - 2⁷ = 22454329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22454459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70453 + ... + 70770.

It is an arithmetic number, because the mean of its divisors is an integer number (3813048).

Almost surely, 2^22454457 is an apocalyptic number.

It is an amenable number.

22454457 is a deficient number, since it is larger than the sum of its proper divisors (8049927).

22454457 is a wasteful number, since it uses less digits than its factorization.

22454457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141279.

The product of its digits is 44800, while the sum is 33.

The square root of 22454457 is about 4738.6134047841. The cubic root of 22454457 is about 282.1202017624.

Adding to 22454457 its reverse (75445422), we get a palindrome (97899879).

The spelling of 22454457 in words is "twenty-two million, four hundred fifty-four thousand, four hundred fifty-seven".