42906851 has 12 divisors (see below), whose sum is σ = 47030256. Its totient is φ = 38913120.

The previous prime is 42906847. The next prime is 42906881. The reversal of 42906851 is 15860924.

It is not a de Polignac number, because 42906851 - 2² = 42906847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42906841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47930 + ... + 48816.

It is an arithmetic number, because the mean of its divisors is an integer number (3919188).

Almost surely, 2^42906851 is an apocalyptic number.

42906851 is a deficient number, since it is larger than the sum of its proper divisors (4123405).

42906851 is an equidigital number, since it uses as much as digits as its factorization.

42906851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 42906851 is about 6550.3321289840. The cubic root of 42906851 is about 350.0866479349.

The spelling of 42906851 in words is "forty-two million, nine hundred six thousand, eight hundred fifty-one".