39806130 has 96 divisors (see below), whose sum is σ = 119738304. Its totient is φ = 8394624.

The previous prime is 39806113. The next prime is 39806131. The reversal of 39806130 is 3160893.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (39806131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18069 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (1247274).

Almost surely, 2^39806130 is an apocalyptic number.

39806130 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 39806130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59869152).

39806130 is an abundant number, since it is smaller than the sum of its proper divisors (79932174).

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

39806130 is a wasteful number, since it uses less digits than its factorization.

39806130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 2113 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 39806130 is about 6309.2099346907. The cubic root of 39806130 is about 341.4417725511.

The spelling of 39806130 in words is "thirty-nine million, eight hundred six thousand, one hundred thirty".