42335887 has 4 divisors (see below), whose sum is σ = 46184616. Its totient is φ = 38487160.

The previous prime is 42335879. The next prime is 42335921. The reversal of 42335887 is 78853324.

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 42335887 - 2³ = 42335879 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42335687) 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, 1924348 + ... + 1924369.

It is an arithmetic number, because the mean of its divisors is an integer number (11546154).

Almost surely, 2^42335887 is an apocalyptic number.

42335887 is a deficient number, since it is larger than the sum of its proper divisors (3848729).

42335887 is a wasteful number, since it uses less digits than its factorization.

42335887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848728.

The product of its digits is 161280, while the sum is 40.

The square root of 42335887 is about 6506.6033381481. The cubic root of 42335887 is about 348.5268339263.

The spelling of 42335887 in words is "forty-two million, three hundred thirty-five thousand, eight hundred eighty-seven".