22743451 has 4 divisors (see below), whose sum is σ = 22830192. Its totient is φ = 22656712.

The previous prime is 22743449. The next prime is 22743473. The reversal of 22743451 is 15434722.

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

It is a cyclic number.

It is not a de Polignac number, because 22743451 - 2¹ = 22743449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22743401) 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 3 ways as a sum of consecutive naturals, for example, 42976 + ... + 43501.

It is an arithmetic number, because the mean of its divisors is an integer number (5707548).

Almost surely, 2^22743451 is an apocalyptic number.

22743451 is a deficient number, since it is larger than the sum of its proper divisors (86741).

22743451 is an equidigital number, since it uses as much as digits as its factorization.

22743451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86740.

The product of its digits is 6720, while the sum is 28.

The square root of 22743451 is about 4769.0094359311. The cubic root of 22743451 is about 283.3253634052.

The spelling of 22743451 in words is "twenty-two million, seven hundred forty-three thousand, four hundred fifty-one".