22403772 has 36 divisors (see below), whose sum is σ = 57841056. Its totient is φ = 7308480.

The previous prime is 22403761. The next prime is 22403779. The reversal of 22403772 is 27730422.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22403779) 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, 4929 + ... + 8312.

It is an arithmetic number, because the mean of its divisors is an integer number (1606696).

Almost surely, 2^22403772 is an apocalyptic number.

It is an amenable number.

22403772 is an abundant number, since it is smaller than the sum of its proper divisors (35437284).

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

22403772 is a wasteful number, since it uses less digits than its factorization.

22403772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13298 (or 13293 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 22403772 is about 4733.2622999365. The cubic root of 22403772 is about 281.9077712581.

The spelling of 22403772 in words is "twenty-two million, four hundred three thousand, seven hundred seventy-two".