22870538 has 8 divisors (see below), whose sum is σ = 35142660. Its totient is φ = 11156320.

The previous prime is 22870537. The next prime is 22870553. The reversal of 22870538 is 83507822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21224449 + 1646089 = 4607^2 + 1283^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22870498 and 22870507.

It is not an unprimeable number, because it can be changed into a prime (22870537) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 139373 + ... + 139536.

Almost surely, 2^22870538 is an apocalyptic number.

22870538 is a deficient number, since it is larger than the sum of its proper divisors (12272122).

22870538 is a wasteful number, since it uses less digits than its factorization.

22870538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278952.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 22870538 is about 4782.3151297254. The cubic root of 22870538 is about 283.8521100673.

The spelling of 22870538 in words is "twenty-two million, eight hundred seventy thousand, five hundred thirty-eight".