22743491 has 8 divisors (see below), whose sum is σ = 23631744. Its totient is φ = 21864960.

The previous prime is 22743473. The next prime is 22743503. The reversal of 22743491 is 19434722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22743491 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2531 + ... + 7203.

It is an arithmetic number, because the mean of its divisors is an integer number (2953968).

Almost surely, 2^22743491 is an apocalyptic number.

22743491 is a deficient number, since it is larger than the sum of its proper divisors (888253).

22743491 is a wasteful number, since it uses less digits than its factorization.

22743491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861.

The product of its digits is 12096, while the sum is 32.

The square root of 22743491 is about 4769.0136296723. The cubic root of 22743491 is about 283.3255295044.

The spelling of 22743491 in words is "twenty-two million, seven hundred forty-three thousand, four hundred ninety-one".