38921222 has 4 divisors (see below), whose sum is σ = 58381836. Its totient is φ = 19460610.

The previous prime is 38921173. The next prime is 38921243. The reversal of 38921222 is 22212983.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9730304 + ... + 9730307.

It is an arithmetic number, because the mean of its divisors is an integer number (14595459).

Almost surely, 2^38921222 is an apocalyptic number.

38921222 is a deficient number, since it is larger than the sum of its proper divisors (19460614).

38921222 is a wasteful number, since it uses less digits than its factorization.

38921222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19460613.

The product of its digits is 3456, while the sum is 29.

The square root of 38921222 is about 6238.6875222277. The cubic root of 38921222 is about 338.8926546129.

The spelling of 38921222 in words is "thirty-eight million, nine hundred twenty-one thousand, two hundred twenty-two".