42185016 has 96 divisors (see below), whose sum is σ = 123901200. Its totient is φ = 13296960.

The previous prime is 42184993. The next prime is 42185063. The reversal of 42185016 is 61058124.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77706 + ... + 78246.

Almost surely, 2^42185016 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 42185016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61950600).

42185016 is an abundant number, since it is smaller than the sum of its proper divisors (81716184).

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

42185016 is a wasteful number, since it uses less digits than its factorization.

42185016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 42185016 is about 6494.9993071593. Note that the first 3 decimals coincide. The cubic root of 42185016 is about 348.1123299681.

The spelling of 42185016 in words is "forty-two million, one hundred eighty-five thousand, sixteen".