22894557 has 8 divisors (see below), whose sum is σ = 34886976. Its totient is φ = 13082592.

The previous prime is 22894549. The next prime is 22894559. The reversal of 22894557 is 75549822.

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

It is not a de Polignac number, because 22894557 - 2³ = 22894549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22894559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545088 + ... + 545129.

It is an arithmetic number, because the mean of its divisors is an integer number (4360872).

Almost surely, 2^22894557 is an apocalyptic number.

It is an amenable number.

22894557 is a deficient number, since it is larger than the sum of its proper divisors (11992419).

22894557 is a wasteful number, since it uses less digits than its factorization.

22894557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090227.

The product of its digits is 201600, while the sum is 42.

The square root of 22894557 is about 4784.8257021547. The cubic root of 22894557 is about 283.9514439569.

The spelling of 22894557 in words is "twenty-two million, eight hundred ninety-four thousand, five hundred fifty-seven".