39531442 has 8 divisors (see below), whose sum is σ = 60048000. Its totient is φ = 19515444.

The previous prime is 39531431. The next prime is 39531449. The reversal of 39531442 is 24413593.

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

It is not an unprimeable number, because it can be changed into a prime (39531449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124942 + ... + 125257.

It is an arithmetic number, because the mean of its divisors is an integer number (7506000).

Almost surely, 2^39531442 is an apocalyptic number.

39531442 is a deficient number, since it is larger than the sum of its proper divisors (20516558).

39531442 is a wasteful number, since it uses less digits than its factorization.

39531442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250280.

The product of its digits is 12960, while the sum is 31.

The square root of 39531442 is about 6287.4034386223. The cubic root of 39531442 is about 340.6545694612.

The spelling of 39531442 in words is "thirty-nine million, five hundred thirty-one thousand, four hundred forty-two".