39944222 has 4 divisors (see below), whose sum is σ = 59916336. Its totient is φ = 19972110.

The previous prime is 39944221. The next prime is 39944243. The reversal of 39944222 is 22244993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22244993 = 17 ⋅1308529.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39944221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9986054 + ... + 9986057.

It is an arithmetic number, because the mean of its divisors is an integer number (14979084).

Almost surely, 2^39944222 is an apocalyptic number.

39944222 is a deficient number, since it is larger than the sum of its proper divisors (19972114).

39944222 is a wasteful number, since it uses less digits than its factorization.

39944222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19972113.

The product of its digits is 31104, while the sum is 35.

The square root of 39944222 is about 6320.1441439258. The cubic root of 39944222 is about 341.8361503245.

The spelling of 39944222 in words is "thirty-nine million, nine hundred forty-four thousand, two hundred twenty-two".