42266868 has 96 divisors (see below), whose sum is σ = 120637440. Its totient is φ = 11249280.

The previous prime is 42266843. The next prime is 42266921. The reversal of 42266868 is 86866224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113130 + ... + 113502.

It is an arithmetic number, because the mean of its divisors is an integer number (1256640).

Almost surely, 2^42266868 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 42266868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60318720).

42266868 is an abundant number, since it is smaller than the sum of its proper divisors (78370572).

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

42266868 is a wasteful number, since it uses less digits than its factorization.

42266868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 42266868 is about 6501.2974089792. The cubic root of 42266868 is about 348.3373330941.

It can be divided in two parts, 42266 and 868, that added together give a palindrome (43134).

The spelling of 42266868 in words is "forty-two million, two hundred sixty-six thousand, eight hundred sixty-eight".