39540386 has 8 divisors (see below), whose sum is σ = 59977260. Its totient is φ = 19547968.

The previous prime is 39540373. The next prime is 39540409. The reversal of 39540386 is 68304593.

39540386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38502025 + 1038361 = 6205^2 + 1019^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110891 + ... + 111246.

Almost surely, 2^39540386 is an apocalyptic number.

39540386 is a deficient number, since it is larger than the sum of its proper divisors (20436874).

39540386 is a wasteful number, since it uses less digits than its factorization.

39540386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222228.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 39540386 is about 6288.1146618044. The cubic root of 39540386 is about 340.6802585883.

The spelling of 39540386 in words is "thirty-nine million, five hundred forty thousand, three hundred eighty-six".