22747449 has 8 divisors (see below), whose sum is σ = 30827392. Its totient is φ = 14916240.

The previous prime is 22747433. The next prime is 22747463. The reversal of 22747449 is 94474722.

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

It is not a de Polignac number, because 22747449 - 2⁴ = 22747433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22747409) 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 7 ways as a sum of consecutive naturals, for example, 61969 + ... + 62334.

It is an arithmetic number, because the mean of its divisors is an integer number (3853424).

Almost surely, 2^22747449 is an apocalyptic number.

It is an amenable number.

22747449 is a deficient number, since it is larger than the sum of its proper divisors (8079943).

22747449 is a wasteful number, since it uses less digits than its factorization.

22747449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124367.

The product of its digits is 112896, while the sum is 39.

The square root of 22747449 is about 4769.4285821260. The cubic root of 22747449 is about 283.3419640585.

The spelling of 22747449 in words is "twenty-two million, seven hundred forty-seven thousand, four hundred forty-nine".