39494391 has 8 divisors (see below), whose sum is σ = 53326080. Its totient is φ = 25996152.

The previous prime is 39494321. The next prime is 39494419. The reversal of 39494391 is 19349493.

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

It is not a de Polignac number, because 39494391 - 2⁹ = 39493879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39494321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83085 + ... + 83558.

It is an arithmetic number, because the mean of its divisors is an integer number (6665760).

Almost surely, 2^39494391 is an apocalyptic number.

39494391 is a deficient number, since it is larger than the sum of its proper divisors (13831689).

39494391 is a wasteful number, since it uses less digits than its factorization.

39494391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166725.

The product of its digits is 104976, while the sum is 42.

The square root of 39494391 is about 6284.4563010654. The cubic root of 39494391 is about 340.5481095811.

The spelling of 39494391 in words is "thirty-nine million, four hundred ninety-four thousand, three hundred ninety-one".