22734427 has 4 divisors (see below), whose sum is σ = 22989960. Its totient is φ = 22478896.

The previous prime is 22734407. The next prime is 22734451. The reversal of 22734427 is 72443722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22734427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22734407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127633 + ... + 127810.

It is an arithmetic number, because the mean of its divisors is an integer number (5747490).

Almost surely, 2^22734427 is an apocalyptic number.

22734427 is a deficient number, since it is larger than the sum of its proper divisors (255533).

22734427 is an equidigital number, since it uses as much as digits as its factorization.

22734427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255532.

The product of its digits is 18816, while the sum is 31.

The square root of 22734427 is about 4768.0632336411. The cubic root of 22734427 is about 283.2878864439.

It can be divided in two parts, 22 and 734427, that added together give a square (734449 = 857²).

The spelling of 22734427 in words is "twenty-two million, seven hundred thirty-four thousand, four hundred twenty-seven".