42091458 has 16 divisors (see below), whose sum is σ = 85198176. Its totient is φ = 13861280.

The previous prime is 42091451. The next prime is 42091463. The reversal of 42091458 is 85419024.

It is not an unprimeable number, because it can be changed into a prime (42091451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41763 + ... + 42758.

It is an arithmetic number, because the mean of its divisors is an integer number (5324886).

Almost surely, 2^42091458 is an apocalyptic number.

42091458 is an abundant number, since it is smaller than the sum of its proper divisors (43106718).

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

42091458 is a wasteful number, since it uses less digits than its factorization.

42091458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84609.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 42091458 is about 6487.7929991639. The cubic root of 42091458 is about 347.8547914458.

The spelling of 42091458 in words is "forty-two million, ninety-one thousand, four hundred fifty-eight".