22304542 has 8 divisors (see below), whose sum is σ = 36030456. Its totient is φ = 10294392.

The previous prime is 22304483. The next prime is 22304551. The reversal of 22304542 is 24540322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×22304542³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 428908 + ... + 428959.

It is an arithmetic number, because the mean of its divisors is an integer number (4503807).

Almost surely, 2^22304542 is an apocalyptic number.

22304542 is a deficient number, since it is larger than the sum of its proper divisors (13725914).

22304542 is a wasteful number, since it uses less digits than its factorization.

22304542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857882.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 22304542 is about 4722.7684677528. The cubic root of 22304542 is about 281.4909499282.

Adding to 22304542 its reverse (24540322), we get a palindrome (46844864).

The spelling of 22304542 in words is "twenty-two million, three hundred four thousand, five hundred forty-two".