3856400142 has 16 divisors (see below), whose sum is σ = 8814628992. Its totient is φ = 1101828600.

The previous prime is 3856400131. The next prime is 3856400159. The reversal of 3856400142 is 2410046583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45909484 + ... + 45909567.

It is an arithmetic number, because the mean of its divisors is an integer number (550914312).

Almost surely, 2^3856400142 is an apocalyptic number.

3856400142 is an abundant number, since it is smaller than the sum of its proper divisors (4958228850).

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

3856400142 is a wasteful number, since it uses less digits than its factorization.

3856400142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91819063.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 3856400142 is about 62099.9206279686. The cubic root of 3856400142 is about 1568.1732091972.

The spelling of 3856400142 in words is "three billion, eight hundred fifty-six million, four hundred thousand, one hundred forty-two".