42999111 has 6 divisors (see below), whose sum is σ = 62109840. Its totient is φ = 28666068.

The previous prime is 42999043. The next prime is 42999113. The reversal of 42999111 is 11199924.

It is not a de Polignac number, because 42999111 - 2²² = 38804807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42999113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2388831 + ... + 2388848.

It is an arithmetic number, because the mean of its divisors is an integer number (10351640).

Almost surely, 2^42999111 is an apocalyptic number.

42999111 is a deficient number, since it is larger than the sum of its proper divisors (19110729).

42999111 is a wasteful number, since it uses less digits than its factorization.

42999111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777685 (or 4777682 counting only the distinct ones).

The product of its digits is 5832, while the sum is 36.

The square root of 42999111 is about 6557.3707383371. The cubic root of 42999111 is about 350.3373916648.

The spelling of 42999111 in words is "forty-two million, nine hundred ninety-nine thousand, one hundred eleven".