22772448 has 48 divisors (see below), whose sum is σ = 66422160. Its totient is φ = 7590528.

The previous prime is 22772441. The next prime is 22772467. The reversal of 22772448 is 84427722.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22772441) 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, 12315 + ... + 14042.

It is an arithmetic number, because the mean of its divisors is an integer number (1383795).

Almost surely, 2^22772448 is an apocalyptic number.

It is an amenable number.

22772448 is an abundant number, since it is smaller than the sum of its proper divisors (43649712).

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

22772448 is a wasteful number, since it uses less digits than its factorization.

22772448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26376 (or 26362 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 22772448 is about 4772.0486166845. The cubic root of 22772448 is about 283.4457218110.

It can be divided in two parts, 22772 and 448, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22772448 in words is "twenty-two million, seven hundred seventy-two thousand, four hundred forty-eight".