39222790 has 32 divisors (see below), whose sum is σ = 73496160. Its totient is φ = 15052800.

The previous prime is 39222779. The next prime is 39222803. The reversal of 39222790 is 9722293.

39222790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60870 + ... + 61510.

It is an arithmetic number, because the mean of its divisors is an integer number (2296755).

Almost surely, 2^39222790 is an apocalyptic number.

39222790 is a deficient number, since it is larger than the sum of its proper divisors (34273370).

39222790 is a wasteful number, since it uses less digits than its factorization.

39222790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 39222790 is about 6262.8100721641. The cubic root of 39222790 is about 339.7656689839.

The spelling of 39222790 in words is "thirty-nine million, two hundred twenty-two thousand, seven hundred ninety".