42047136 has 72 divisors (see below), whose sum is σ = 121080960. Its totient is φ = 13838976.

The previous prime is 42047111. The next prime is 42047141. The reversal of 42047136 is 63174024.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23025 + ... + 24783.

It is an arithmetic number, because the mean of its divisors is an integer number (1681680).

Almost surely, 2^42047136 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 42047136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60540480).

42047136 is an abundant number, since it is smaller than the sum of its proper divisors (79033824).

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

42047136 is a wasteful number, since it uses less digits than its factorization.

42047136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 42047136 is about 6484.3762999999. The cubic root of 42047136 is about 347.7326523745.

The spelling of 42047136 in words is "forty-two million, forty-seven thousand, one hundred thirty-six".