38688722 has 8 divisors (see below), whose sum is σ = 58063500. Its totient is φ = 19334224.

The previous prime is 38688721. The next prime is 38688779. The reversal of 38688722 is 22788683.

It can be written as a sum of positive squares in 2 ways, for example, as 38427601 + 261121 = 6199^2 + 511^2 .

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

It is not an unprimeable number, because it can be changed into a prime (38688721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304 + ... + 8892.

Almost surely, 2^38688722 is an apocalyptic number.

38688722 is a deficient number, since it is larger than the sum of its proper divisors (19374778).

38688722 is a wasteful number, since it uses less digits than its factorization.

38688722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140.

The product of its digits is 258048, while the sum is 44.

The square root of 38688722 is about 6220.0258841905. The cubic root of 38688722 is about 338.2165028656.

The spelling of 38688722 in words is "thirty-eight million, six hundred eighty-eight thousand, seven hundred twenty-two".