22845649 has 8 divisors (see below), whose sum is σ = 23823360. Its totient is φ = 21880656.

The previous prime is 22845643. The next prime is 22845679. The reversal of 22845649 is 94654822.

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

It is a cyclic number.

It is not a de Polignac number, because 22845649 - 2⁵ = 22845617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22845643) 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, 582 + ... + 6784.

It is an arithmetic number, because the mean of its divisors is an integer number (2977920).

Almost surely, 2^22845649 is an apocalyptic number.

22845649 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22845649 is a deficient number, since it is larger than the sum of its proper divisors (977711).

22845649 is a wasteful number, since it uses less digits than its factorization.

22845649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359.

The product of its digits is 138240, while the sum is 40.

The square root of 22845649 is about 4779.7122298314. The cubic root of 22845649 is about 283.7491047731.

The spelling of 22845649 in words is "twenty-two million, eight hundred forty-five thousand, six hundred forty-nine".