39902222 has 8 divisors (see below), whose sum is σ = 59898000. Its totient is φ = 19936224.

The previous prime is 39902197. The next prime is 39902251. The reversal of 39902222 is 22220993.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3722 + ... + 9677.

It is an arithmetic number, because the mean of its divisors is an integer number (7487250).

Almost surely, 2^39902222 is an apocalyptic number.

39902222 is a deficient number, since it is larger than the sum of its proper divisors (19995778).

39902222 is a wasteful number, since it uses less digits than its factorization.

39902222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14890.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 39902222 is about 6316.8205610101. The cubic root of 39902222 is about 341.7162985867.

The spelling of 39902222 in words is "thirty-nine million, nine hundred two thousand, two hundred twenty-two".