39820113 has 32 divisors (see below), whose sum is σ = 60739200. Its totient is φ = 25774848.

The previous prime is 39820111. The next prime is 39820117. The reversal of 39820113 is 31102893.

It is not a de Polignac number, because 39820113 - 2¹ = 39820111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (39820111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175306 + ... + 175532.

It is an arithmetic number, because the mean of its divisors is an integer number (1898100).

Almost surely, 2^39820113 is an apocalyptic number.

It is an amenable number.

39820113 is a deficient number, since it is larger than the sum of its proper divisors (20919087).

39820113 is a wasteful number, since it uses less digits than its factorization.

39820113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 39820113 is about 6310.3179793098. The cubic root of 39820113 is about 341.4817481476.

The spelling of 39820113 in words is "thirty-nine million, eight hundred twenty thousand, one hundred thirteen".