42856101 has 16 divisors (see below), whose sum is σ = 65208000. Its totient is φ = 27797904.

The previous prime is 42856091. The next prime is 42856109. The reversal of 42856101 is 10165824.

42856101 is a `hidden beast` number, since 42 + 8 + 5 + 610 + 1 = 666.

It is not a de Polignac number, because 42856101 - 2⁵ = 42856069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42856109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20451 + ... + 22448.

It is an arithmetic number, because the mean of its divisors is an integer number (4075500).

Almost surely, 2^42856101 is an apocalyptic number.

It is an amenable number.

42856101 is a deficient number, since it is larger than the sum of its proper divisors (22351899).

42856101 is a wasteful number, since it uses less digits than its factorization.

42856101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42945 (or 42939 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 42856101 is about 6546.4571334425. The cubic root of 42856101 is about 349.9485665918.

The spelling of 42856101 in words is "forty-two million, eight hundred fifty-six thousand, one hundred one".