22874639 has 6 divisors (see below), whose sum is σ = 24299664. Its totient is φ = 21528800.

The previous prime is 22874633. The next prime is 22874647. The reversal of 22874639 is 93647822.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-22874639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22874596 and 22874605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22874633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39287 + ... + 39864.

It is an arithmetic number, because the mean of its divisors is an integer number (4049944).

Almost surely, 2^22874639 is an apocalyptic number.

22874639 is a deficient number, since it is larger than the sum of its proper divisors (1425025).

22874639 is an equidigital number, since it uses as much as digits as its factorization.

22874639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79185 (or 79168 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 22874639 is about 4782.7438777338. The cubic root of 22874639 is about 283.8690752408.

The spelling of 22874639 in words is "twenty-two million, eight hundred seventy-four thousand, six hundred thirty-nine".