22678645 has 8 divisors (see below), whose sum is σ = 29688480. Its totient is φ = 16493520.

The previous prime is 22678627. The next prime is 22678651. The reversal of 22678645 is 54687622.

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

It is not a de Polignac number, because 22678645 - 2⁵ = 22678613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22678598 and 22678607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206115 + ... + 206224.

It is an arithmetic number, because the mean of its divisors is an integer number (3711060).

Almost surely, 2^22678645 is an apocalyptic number.

It is an amenable number.

22678645 is a deficient number, since it is larger than the sum of its proper divisors (7009835).

22678645 is a wasteful number, since it uses less digits than its factorization.

22678645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412355.

The product of its digits is 161280, while the sum is 40.

The square root of 22678645 is about 4762.2100961633. The cubic root of 22678645 is about 283.0560016032.

The spelling of 22678645 in words is "twenty-two million, six hundred seventy-eight thousand, six hundred forty-five".