39422813 has 8 divisors (see below), whose sum is σ = 41912640. Its totient is φ = 36952000.

The previous prime is 39422809. The next prime is 39422819. The reversal of 39422813 is 31822493.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 39422813 - 2² = 39422809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39422813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39422819) 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, 353 + ... + 8886.

It is an arithmetic number, because the mean of its divisors is an integer number (5239080).

Almost surely, 2^39422813 is an apocalyptic number.

It is an amenable number.

39422813 is a deficient number, since it is larger than the sum of its proper divisors (2489827).

39422813 is a wasteful number, since it uses less digits than its factorization.

39422813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9507.

The product of its digits is 10368, while the sum is 32.

The square root of 39422813 is about 6278.7588741725. The cubic root of 39422813 is about 340.3422534019.

The spelling of 39422813 in words is "thirty-nine million, four hundred twenty-two thousand, eight hundred thirteen".