22463928 has 48 divisors (see below), whose sum is σ = 64045800. Its totient is φ = 7093440.

The previous prime is 22463927. The next prime is 22463971. The reversal of 22463928 is 82936422.

It is a super-2 number, since 2×22463928² = 1009256122378368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22463892 and 22463901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22463923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6843 + ... + 9578.

Almost surely, 2^22463928 is an apocalyptic number.

It is an amenable number.

22463928 is an abundant number, since it is smaller than the sum of its proper divisors (41581872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22463928 is a wasteful number, since it uses less digits than its factorization.

22463928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16452 (or 16445 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 22463928 is about 4739.6126424002. The cubic root of 22463928 is about 282.1598610730.

It can be divided in two parts, 2246 and 3928, that multiplied together give a palindrome (8822288).

The spelling of 22463928 in words is "twenty-two million, four hundred sixty-three thousand, nine hundred twenty-eight".