38621228 has 12 divisors (see below), whose sum is σ = 68402040. Its totient is φ = 19077792.

The previous prime is 38621227. The next prime is 38621239. The reversal of 38621228 is 82212683.

It is a junction number, because it is equal to n+sod(n) for n = 38621194 and 38621203.

It is not an unprimeable number, because it can be changed into a prime (38621227) 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, 57833 + ... + 58496.

It is an arithmetic number, because the mean of its divisors is an integer number (5700170).

Almost surely, 2^38621228 is an apocalyptic number.

It is an amenable number.

38621228 is a deficient number, since it is larger than the sum of its proper divisors (29780812).

38621228 is a wasteful number, since it uses less digits than its factorization.

38621228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116416 (or 116414 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 38621228 is about 6214.5979757342. The cubic root of 38621228 is about 338.0197110454.

The spelling of 38621228 in words is "thirty-eight million, six hundred twenty-one thousand, two hundred twenty-eight".