42416851 has 4 divisors (see below), whose sum is σ = 42457600. Its totient is φ = 42376104.

The previous prime is 42416849. The next prime is 42416861. The reversal of 42416851 is 15861424.

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

It is a cyclic number.

It is not a de Polignac number, because 42416851 - 2¹ = 42416849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42416861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18771 + ... + 20908.

It is an arithmetic number, because the mean of its divisors is an integer number (10614400).

Almost surely, 2^42416851 is an apocalyptic number.

42416851 is a deficient number, since it is larger than the sum of its proper divisors (40749).

42416851 is a wasteful number, since it uses less digits than its factorization.

42416851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40748.

The product of its digits is 7680, while the sum is 31.

The square root of 42416851 is about 6512.8220457802. The cubic root of 42416851 is about 348.7488690157.

The spelling of 42416851 in words is "forty-two million, four hundred sixteen thousand, eight hundred fifty-one".