3856142 has 4 divisors (see below), whose sum is σ = 5784216.
Its totient is φ = 1928070.
The previous prime is 3856141. The next prime is 3856147. The reversal of 3856142 is 2416583.
It is a semiprime because it is the product of two primes.
It is a super-2 number, since 2×38561422 = 29739662248328, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3856141) by changing a digit.
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, 964034 + ... + 964037.
It is an arithmetic number, because the mean of its divisors is an integer number (1446054).
Almost surely, 23856142 is an apocalyptic number.
3856142 is a deficient number, since it is larger than the sum of its proper divisors (1928074).
3856142 is a wasteful number, since it uses less digits than its factorization.
3856142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1928073.
The product of its digits is 5760, while the sum is 29.
The square root of 3856142 is about 1963.7061898359.
The cubic root of 3856142 is about 156.8138217980.
The spelling of 3856142 in words is "three million, eight hundred fifty-six thousand, one hundred forty-two".