42886849 has 4 divisors (see below), whose sum is σ = 42989140. Its totient is φ = 42784560.

The previous prime is 42886829. The next prime is 42886859. The reversal of 42886849 is 94868824.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3448449 + 39438400 = 1857^2 + 6280^2 .

It is a cyclic number.

It is not a de Polignac number, because 42886849 - 2⁵ = 42886817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42886829) 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, 50514 + ... + 51355.

It is an arithmetic number, because the mean of its divisors is an integer number (10747285).

Almost surely, 2^42886849 is an apocalyptic number.

It is an amenable number.

42886849 is a deficient number, since it is larger than the sum of its proper divisors (102291).

42886849 is a wasteful number, since it uses less digits than its factorization.

42886849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102290.

The product of its digits is 884736, while the sum is 49.

The square root of 42886849 is about 6548.8051581949. The cubic root of 42886849 is about 350.0322392072.

The spelling of 42886849 in words is "forty-two million, eight hundred eighty-six thousand, eight hundred forty-nine".