39131070 has 96 divisors (see below), whose sum is σ = 109226880. Its totient is φ = 8873280.

The previous prime is 39131069. The next prime is 39131107. The reversal of 39131070 is 7013193.

It is a self number, because there is not a number n which added to its sum of digits gives 39131070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 495291 + ... + 495369.

It is an arithmetic number, because the mean of its divisors is an integer number (1137780).

Almost surely, 2^39131070 is an apocalyptic number.

39131070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 39131070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54613440).

39131070 is an abundant number, since it is smaller than the sum of its proper divisors (70095810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39131070 is a wasteful number, since it uses less digits than its factorization.

39131070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 39131070 is about 6255.4831947660. The cubic root of 39131070 is about 339.5006221416.

The spelling of 39131070 in words is "thirty-nine million, one hundred thirty-one thousand, seventy".