39213442 has 8 divisors (see below), whose sum is σ = 59648832. Its totient is φ = 19330500.

The previous prime is 39213431. The next prime is 39213443. The reversal of 39213442 is 24431293.

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

It is a self number, because there is not a number n which added to its sum of digits gives 39213442.

It is not an unprimeable number, because it can be changed into a prime (39213443) by changing a digit.

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, 137934 + ... + 138217.

It is an arithmetic number, because the mean of its divisors is an integer number (7456104).

Almost surely, 2^39213442 is an apocalyptic number.

39213442 is a deficient number, since it is larger than the sum of its proper divisors (20435390).

39213442 is a wasteful number, since it uses less digits than its factorization.

39213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276224.

The product of its digits is 5184, while the sum is 28.

The square root of 39213442 is about 6262.0637173379. The cubic root of 39213442 is about 339.7386746283.

It can be divided in two parts, 39 and 213442, that multiplied together give a palindrome (8324238).

The spelling of 39213442 in words is "thirty-nine million, two hundred thirteen thousand, four hundred forty-two".