42115836 has 48 divisors (see below), whose sum is σ = 112976640. Its totient is φ = 11961600.

The previous prime is 42115831. The next prime is 42115841. The reversal of 42115836 is 63851124.

It is an interprime number because it is at equal distance from previous prime (42115831) and next prime (42115841).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42115831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13636 + ... + 16436.

It is an arithmetic number, because the mean of its divisors is an integer number (2353680).

Almost surely, 2^42115836 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 42115836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56488320).

42115836 is an abundant number, since it is smaller than the sum of its proper divisors (70860804).

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

42115836 is a wasteful number, since it uses less digits than its factorization.

42115836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994 (or 2992 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 42115836 is about 6489.6714862927. The cubic root of 42115836 is about 347.9219338695.

The spelling of 42115836 in words is "forty-two million, one hundred fifteen thousand, eight hundred thirty-six".