22645463 has 4 divisors (see below), whose sum is σ = 22808520. Its totient is φ = 22482408.

The previous prime is 22645451. The next prime is 22645481. The reversal of 22645463 is 36454622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36454622 = 2 ⋅18227311.

It is a cyclic number.

It is not a de Polignac number, because 22645463 - 2²² = 18451159 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 (22645423) 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, 81320 + ... + 81597.

It is an arithmetic number, because the mean of its divisors is an integer number (5702130).

Almost surely, 2^22645463 is an apocalyptic number.

22645463 is a deficient number, since it is larger than the sum of its proper divisors (163057).

22645463 is a wasteful number, since it uses less digits than its factorization.

22645463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163056.

The product of its digits is 34560, while the sum is 32.

The square root of 22645463 is about 4758.7249342655. The cubic root of 22645463 is about 282.9178841694.

The spelling of 22645463 in words is "twenty-two million, six hundred forty-five thousand, four hundred sixty-three".