42788046 has 16 divisors (see below), whose sum is σ = 97801344. Its totient is φ = 12225144.

The previous prime is 42788033. The next prime is 42788063. The reversal of 42788046 is 64088724.

42788046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42787995 and 42788013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509340 + ... + 509423.

It is an arithmetic number, because the mean of its divisors is an integer number (6112584).

Almost surely, 2^42788046 is an apocalyptic number.

42788046 is an abundant number, since it is smaller than the sum of its proper divisors (55013298).

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

42788046 is a wasteful number, since it uses less digits than its factorization.

42788046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018775.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 42788046 is about 6541.2572186087. The cubic root of 42788046 is about 349.7632303412.

The spelling of 42788046 in words is "forty-two million, seven hundred eighty-eight thousand, forty-six".