22420453 has 12 divisors (see below), whose sum is σ = 24855040. Its totient is φ = 20207880.

The previous prime is 22420441. The next prime is 22420493. The reversal of 22420453 is 35402422.

It is not a de Polignac number, because 22420453 - 2⁵ = 22420421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22420403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14638 + ... + 16096.

Almost surely, 2^22420453 is an apocalyptic number.

It is an amenable number.

22420453 is a deficient number, since it is larger than the sum of its proper divisors (2434587).

22420453 is a wasteful number, since it uses less digits than its factorization.

22420453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 22420453 is about 4735.0240759684. The cubic root of 22420453 is about 281.9777198500.

Adding to 22420453 its reverse (35402422), we get a palindrome (57822875).

The spelling of 22420453 in words is "twenty-two million, four hundred twenty thousand, four hundred fifty-three".