22047452 has 36 divisors (see below), whose sum is σ = 45189144. Its totient is φ = 9384480.

The previous prime is 22047451. The next prime is 22047461. The reversal of 22047452 is 25474022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22047451) 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, 38327 + ... + 38897.

It is an arithmetic number, because the mean of its divisors is an integer number (1255254).

Almost surely, 2^22047452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22047452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22594572).

22047452 is an abundant number, since it is smaller than the sum of its proper divisors (23141692).

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

22047452 is a wasteful number, since it uses less digits than its factorization.

22047452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 22047452 is about 4695.4714353300. The cubic root of 22047452 is about 280.4052465334.

It can be divided in two parts, 2 and 2047452, that multiplied together give a palindrome (4094904).

The spelling of 22047452 in words is "twenty-two million, forty-seven thousand, four hundred fifty-two".