39556142 has 4 divisors (see below), whose sum is σ = 59334216. Its totient is φ = 19778070.

The previous prime is 39556133. The next prime is 39556183. The reversal of 39556142 is 24165593.

39556142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×39556142⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 9889034 + ... + 9889037.

It is an arithmetic number, because the mean of its divisors is an integer number (14833554).

Almost surely, 2^39556142 is an apocalyptic number.

39556142 is a deficient number, since it is larger than the sum of its proper divisors (19778074).

39556142 is a wasteful number, since it uses less digits than its factorization.

39556142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19778073.

The product of its digits is 32400, while the sum is 35.

The square root of 39556142 is about 6289.3673767717. The cubic root of 39556142 is about 340.7255038500.

The spelling of 39556142 in words is "thirty-nine million, five hundred fifty-six thousand, one hundred forty-two".