39638142 has 24 divisors (see below), whose sum is σ = 90403560. Its totient is φ = 12517200.

The previous prime is 39638113. The next prime is 39638153. The reversal of 39638142 is 24183693.

39638142 is a `hidden beast` number, since 3 + 9 + 638 + 14 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 39638097 and 39638106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57609 + ... + 58292.

It is an arithmetic number, because the mean of its divisors is an integer number (3766815).

Almost surely, 2^39638142 is an apocalyptic number.

39638142 is an abundant number, since it is smaller than the sum of its proper divisors (50765418).

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

39638142 is a wasteful number, since it uses less digits than its factorization.

39638142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115928 (or 115925 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 39638142 is about 6295.8829404620. The cubic root of 39638142 is about 340.9607830076.

The spelling of 39638142 in words is "thirty-nine million, six hundred thirty-eight thousand, one hundred forty-two".