22649545 has 8 divisors (see below), whose sum is σ = 27215424. Its totient is φ = 18095664.

The previous prime is 22649509. The next prime is 22649563. The reversal of 22649545 is 54594622.

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 22649545 - 2¹¹ = 22647497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1882 + ... + 6988.

It is an arithmetic number, because the mean of its divisors is an integer number (3401928).

Almost surely, 2^22649545 is an apocalyptic number.

It is an amenable number.

22649545 is a deficient number, since it is larger than the sum of its proper divisors (4565879).

22649545 is an equidigital number, since it uses as much as digits as its factorization.

22649545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999.

The product of its digits is 86400, while the sum is 37.

The square root of 22649545 is about 4759.1538113408. The cubic root of 22649545 is about 282.9348824444.

The spelling of 22649545 in words is "twenty-two million, six hundred forty-nine thousand, five hundred forty-five".