42890046 has 8 divisors (see below), whose sum is σ = 85780104. Its totient is φ = 14296680.

The previous prime is 42890033. The next prime is 42890051. The reversal of 42890046 is 64009824.

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

42890046 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 42889989 and 42890016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3574165 + ... + 3574176.

It is an arithmetic number, because the mean of its divisors is an integer number (10722513).

Almost surely, 2^42890046 is an apocalyptic number.

42890046 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.

42890046 is a wasteful number, since it uses less digits than its factorization.

42890046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148346.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 42890046 is about 6549.0492439743. The cubic root of 42890046 is about 350.0409367084.

The spelling of 42890046 in words is "forty-two million, eight hundred ninety thousand, forty-six".