22242544 has 10 divisors (see below), whose sum is σ = 43094960. Its totient is φ = 11121264.

The previous prime is 22242533. The next prime is 22242553. The reversal of 22242544 is 44524222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695064 + ... + 695095.

It is an arithmetic number, because the mean of its divisors is an integer number (4309496).

Almost surely, 2^22242544 is an apocalyptic number.

It is an amenable number.

22242544 is a deficient number, since it is larger than the sum of its proper divisors (20852416).

22242544 is a wasteful number, since it uses less digits than its factorization.

22242544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390167 (or 1390161 counting only the distinct ones).

The product of its digits is 5120, while the sum is 25.

The square root of 22242544 is about 4716.2001653874. The cubic root of 22242544 is about 281.2298959128.

Adding to 22242544 its reverse (44524222), we get a palindrome (66766766).

The spelling of 22242544 in words is "twenty-two million, two hundred forty-two thousand, five hundred forty-four".