42304086 has 64 divisors (see below), whose sum is σ = 103334400. Its totient is φ = 12722400.

The previous prime is 42304079. The next prime is 42304147. The reversal of 42304086 is 68040324.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135871 + ... + 136181.

It is an arithmetic number, because the mean of its divisors is an integer number (1614600).

Almost surely, 2^42304086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42304086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51667200).

42304086 is an abundant number, since it is smaller than the sum of its proper divisors (61030314).

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

42304086 is a wasteful number, since it uses less digits than its factorization.

42304086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 42304086 is about 6504.1591308946. The cubic root of 42304086 is about 348.4395456629.

The spelling of 42304086 in words is "forty-two million, three hundred four thousand, eighty-six".