42785452 has 24 divisors (see below), whose sum is σ = 76930560. Its totient is φ = 20813520.

The previous prime is 42785441. The next prime is 42785459. The reversal of 42785452 is 25458724.

It is a happy number.

42785452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42785459) by changing a digit.

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, 21483 + ... + 23389.

It is an arithmetic number, because the mean of its divisors is an integer number (3205440).

Almost surely, 2^42785452 is an apocalyptic number.

It is an amenable number.

42785452 is a deficient number, since it is larger than the sum of its proper divisors (34145108).

42785452 is a wasteful number, since it uses less digits than its factorization.

42785452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061 (or 2059 counting only the distinct ones).

The product of its digits is 89600, while the sum is 37.

The square root of 42785452 is about 6541.0589356770. The cubic root of 42785452 is about 349.7561621354.

It can be divided in two parts, 4278 and 5452, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 42785452 in words is "forty-two million, seven hundred eighty-five thousand, four hundred fifty-two".