39399422 has 4 divisors (see below), whose sum is σ = 59099136. Its totient is φ = 19699710.

The previous prime is 39399377. The next prime is 39399427. The reversal of 39399422 is 22499393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22499393 = 7 ⋅3214199.

It is a self number, because there is not a number n which added to its sum of digits gives 39399422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39399427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9849854 + ... + 9849857.

It is an arithmetic number, because the mean of its divisors is an integer number (14774784).

Almost surely, 2^39399422 is an apocalyptic number.

39399422 is a deficient number, since it is larger than the sum of its proper divisors (19699714).

39399422 is a wasteful number, since it uses less digits than its factorization.

39399422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19699713.

The product of its digits is 104976, while the sum is 41.

The square root of 39399422 is about 6276.8958888929. The cubic root of 39399422 is about 340.2749275731.

The spelling of 39399422 in words is "thirty-nine million, three hundred ninety-nine thousand, four hundred twenty-two".