42550458 has 8 divisors (see below), whose sum is σ = 85100928. Its totient is φ = 14183484.

The previous prime is 42550451. The next prime is 42550493. The reversal of 42550458 is 85405524.

It is a sphenic number, since it is the product of 3 distinct primes.

42550458 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42550451) 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 3 ways as a sum of consecutive naturals, for example, 3545866 + ... + 3545877.

It is an arithmetic number, because the mean of its divisors is an integer number (10637616).

Almost surely, 2^42550458 is an apocalyptic number.

42550458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42550458 is a wasteful number, since it uses less digits than its factorization.

42550458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091748.

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 42550458 is about 6523.0712091775. The cubic root of 42550458 is about 349.1146548739.

The spelling of 42550458 in words is "forty-two million, five hundred fifty thousand, four hundred fifty-eight".