42604785 has 40 divisors (see below), whose sum is σ = 77711040. Its totient is φ = 22324896.

The previous prime is 42604759. The next prime is 42604811. The reversal of 42604785 is 58740624.

42604785 is a `hidden beast` number, since 42 + 604 + 7 + 8 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (42604759) and next prime (42604811).

It is not a de Polignac number, because 42604785 - 2⁵ = 42604753 is a prime.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 23004 + ... + 24786.

It is an arithmetic number, because the mean of its divisors is an integer number (1942776).

Almost surely, 2^42604785 is an apocalyptic number.

42604785 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42604785 is a deficient number, since it is larger than the sum of its proper divisors (35106255).

42604785 is a wasteful number, since it uses less digits than its factorization.

42604785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 42604785 is about 6527.2341002909. The cubic root of 42604785 is about 349.2631709856.

It can be divided in two parts, 4260 and 4785, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 42604785 in words is "forty-two million, six hundred four thousand, seven hundred eighty-five".