42289086 has 16 divisors (see below), whose sum is σ = 96660864. Its totient is φ = 12082584.

The previous prime is 42289073. The next prime is 42289097. The reversal of 42289086 is 68098224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503400 + ... + 503483.

It is an arithmetic number, because the mean of its divisors is an integer number (6041304).

Almost surely, 2^42289086 is an apocalyptic number.

42289086 is an abundant number, since it is smaller than the sum of its proper divisors (54371778).

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

42289086 is a wasteful number, since it uses less digits than its factorization.

42289086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006895.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 42289086 is about 6503.0059203418. The cubic root of 42289086 is about 348.3983580650.

The spelling of 42289086 in words is "forty-two million, two hundred eighty-nine thousand, eighty-six".