42377868 has 144 divisors (see below), whose sum is σ = 125239296. Its totient is φ = 11975040.

The previous prime is 42377851. The next prime is 42377869. The reversal of 42377868 is 86877324.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42377869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 333621 + ... + 333747.

Almost surely, 2^42377868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42377868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62619648).

42377868 is an abundant number, since it is smaller than the sum of its proper divisors (82861428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42377868 is a wasteful number, since it uses less digits than its factorization.

42377868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 199 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 42377868 is about 6509.8285691714. The cubic root of 42377868 is about 348.6419976201.

The spelling of 42377868 in words is "forty-two million, three hundred seventy-seven thousand, eight hundred sixty-eight".