42730458 has 32 divisors (see below), whose sum is σ = 89510400. Its totient is φ = 13573296.

The previous prime is 42730403. The next prime is 42730459. The reversal of 42730458 is 85403724.

It is not an unprimeable number, because it can be changed into a prime (42730459) by changing a digit.

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, 57453 + ... + 58191.

It is an arithmetic number, because the mean of its divisors is an integer number (2797200).

Almost surely, 2^42730458 is an apocalyptic number.

42730458 is an abundant number, since it is smaller than the sum of its proper divisors (46779942).

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

42730458 is a wasteful number, since it uses less digits than its factorization.

42730458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 42730458 is about 6536.8538303988. The cubic root of 42730458 is about 349.6062456229.

The spelling of 42730458 in words is "forty-two million, seven hundred thirty thousand, four hundred fifty-eight".