22374442 has 4 divisors (see below), whose sum is σ = 33561666. Its totient is φ = 11187220.

The previous prime is 22374439. The next prime is 22374461. The reversal of 22374442 is 24447322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14584761 + 7789681 = 3819^2 + 2791^2 .

It is a super-2 number, since 2×22374442² = 1001231309622728, which contains 22 as substring.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 22374442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5593609 + ... + 5593612.

Almost surely, 2^22374442 is an apocalyptic number.

22374442 is a deficient number, since it is larger than the sum of its proper divisors (11187224).

22374442 is a wasteful number, since it uses less digits than its factorization.

22374442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11187223.

The product of its digits is 10752, while the sum is 28.

The square root of 22374442 is about 4730.1629993056. The cubic root of 22374442 is about 281.7846972546.

The spelling of 22374442 in words is "twenty-two million, three hundred seventy-four thousand, four hundred forty-two".