42091230 has 32 divisors (see below), whose sum is σ = 101320704. Its totient is φ = 11190816.

The previous prime is 42091207. The next prime is 42091277. The reversal of 42091230 is 3219024.

It is a junction number, because it is equal to n+sod(n) for n = 42091197 and 42091206.

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 15 ways as a sum of consecutive naturals, for example, 9099 + ... + 12921.

It is an arithmetic number, because the mean of its divisors is an integer number (3166272).

Almost surely, 2^42091230 is an apocalyptic number.

42091230 is an abundant number, since it is smaller than the sum of its proper divisors (59229474).

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

42091230 is a wasteful number, since it uses less digits than its factorization.

42091230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 42091230 is about 6487.7754276794. The cubic root of 42091230 is about 347.8541633609.

The spelling of 42091230 in words is "forty-two million, ninety-one thousand, two hundred thirty".