42168699 has 24 divisors (see below), whose sum is σ = 62300160. Its totient is φ = 27479088.

The previous prime is 42168689. The next prime is 42168701. The reversal of 42168699 is 99686124.

It is a happy number.

It is not a de Polignac number, because 42168699 - 2⁹ = 42168187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42168689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90064 + ... + 90530.

It is an arithmetic number, because the mean of its divisors is an integer number (2595840).

Almost surely, 2^42168699 is an apocalyptic number.

42168699 is a deficient number, since it is larger than the sum of its proper divisors (20131461).

42168699 is a wasteful number, since it uses less digits than its factorization.

42168699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 676 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 42168699 is about 6493.7430654438. The cubic root of 42168699 is about 348.0674413486.

The spelling of 42168699 in words is "forty-two million, one hundred sixty-eight thousand, six hundred ninety-nine".