38221898 has 32 divisors (see below), whose sum is σ = 68040000. Its totient is φ = 15874560.

The previous prime is 38221891. The next prime is 38221907. The reversal of 38221898 is 89812283.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38221891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29978 + ... + 31226.

It is an arithmetic number, because the mean of its divisors is an integer number (2126250).

Almost surely, 2^38221898 is an apocalyptic number.

38221898 is a deficient number, since it is larger than the sum of its proper divisors (29818102).

38221898 is a wasteful number, since it uses less digits than its factorization.

38221898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382.

The product of its digits is 55296, while the sum is 41.

The square root of 38221898 is about 6182.3861089388. The cubic root of 38221898 is about 336.8506706901.

The spelling of 38221898 in words is "thirty-eight million, two hundred twenty-one thousand, eight hundred ninety-eight".