22740745 has 8 divisors (see below), whose sum is σ = 27316800. Its totient is φ = 18174000.

The previous prime is 22740743. The next prime is 22740749. The reversal of 22740745 is 54704722.

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

It is not a de Polignac number, because 22740745 - 2¹ = 22740743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22740743) 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, 5370 + ... + 8620.

It is an arithmetic number, because the mean of its divisors is an integer number (3414600).

Almost surely, 2^22740745 is an apocalyptic number.

It is an amenable number.

22740745 is a deficient number, since it is larger than the sum of its proper divisors (4576055).

22740745 is a wasteful number, since it uses less digits than its factorization.

22740745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 22740745 is about 4768.7257207770. The cubic root of 22740745 is about 283.3141263412.

The spelling of 22740745 in words is "twenty-two million, seven hundred forty thousand, seven hundred forty-five".