39992130 has 80 divisors (see below), whose sum is σ = 108856440. Its totient is φ = 10533888.

The previous prime is 39992129. The next prime is 39992221. The reversal of 39992130 is 3129993.

39992130 = T₂₄₆ + T₂₄₇ + ... + T₆₃₃.

It can be written as a sum of positive squares in 4 ways, for example, as 36036009 + 3956121 = 6003^2 + 1989^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 78316 + ... + 78824.

Almost surely, 2^39992130 is an apocalyptic number.

39992130 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 39992130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54428220).

39992130 is an abundant number, since it is smaller than the sum of its proper divisors (68864310).

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

39992130 is a wasteful number, since it uses less digits than its factorization.

39992130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 39992130 is about 6323.9331116007. The cubic root of 39992130 is about 341.9727586797.

It can be divided in two parts, 399 and 92130, that added together give a palindrome (92529).

The spelling of 39992130 in words is "thirty-nine million, nine hundred ninety-two thousand, one hundred thirty".