42161076 has 72 divisors (see below), whose sum is σ = 114397920. Its totient is φ = 13051584.

The previous prime is 42161069. The next prime is 42161081. The reversal of 42161076 is 67016124.

42161076 is a `hidden beast` number, since 42 + 1 + 610 + 7 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35671 + ... + 36833.

It is an arithmetic number, because the mean of its divisors is an integer number (1588860).

Almost surely, 2^42161076 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 42161076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57198960).

42161076 is an abundant number, since it is smaller than the sum of its proper divisors (72236844).

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

42161076 is a wasteful number, since it uses less digits than its factorization.

42161076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 42161076 is about 6493.1560892989. The cubic root of 42161076 is about 348.0464662488.

The spelling of 42161076 in words is "forty-two million, one hundred sixty-one thousand, seventy-six".