22342545 has 24 divisors (see below), whose sum is σ = 40412736. Its totient is φ = 11397408.

The previous prime is 22342511. The next prime is 22342547. The reversal of 22342545 is 54524322.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-22342545 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22342547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9759 + ... + 11828.

It is an arithmetic number, because the mean of its divisors is an integer number (1683864).

Almost surely, 2^22342545 is an apocalyptic number.

It is an amenable number.

22342545 is a deficient number, since it is larger than the sum of its proper divisors (18070191).

22342545 is a wasteful number, since it uses less digits than its factorization.

22342545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21621 (or 21618 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 22342545 is about 4726.7901370803. The cubic root of 22342545 is about 281.6507295038.

Adding to 22342545 its reverse (54524322), we get a palindrome (76866867).

The spelling of 22342545 in words is "twenty-two million, three hundred forty-two thousand, five hundred forty-five".