22030452 has 18 divisors (see below), whose sum is σ = 55688178. Its totient is φ = 7343472.

The previous prime is 22030439. The next prime is 22030483. The reversal of 22030452 is 25403022.

It can be written as a sum of positive squares in only one way, i.e., 17338896 + 4691556 = 4164^2 + 2166^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305943 + ... + 306014.

Almost surely, 2^22030452 is an apocalyptic number.

It is an amenable number.

22030452 is an abundant number, since it is smaller than the sum of its proper divisors (33657726).

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

22030452 is a wasteful number, since it uses less digits than its factorization.

22030452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611967 (or 611962 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22030452 is about 4693.6608313767. The cubic root of 22030452 is about 280.3331578568. Note that the first 3 decimals are identical.

Adding to 22030452 its reverse (25403022), we get a palindrome (47433474).

The spelling of 22030452 in words is "twenty-two million, thirty thousand, four hundred fifty-two".