42204785 has 16 divisors (see below), whose sum is σ = 59294592. Its totient is φ = 28233600.

The previous prime is 42204781. The next prime is 42204787. The reversal of 42204785 is 58740224.

It is not a de Polignac number, because 42204785 - 2² = 42204781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42204781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13271 + ... + 16140.

It is an arithmetic number, because the mean of its divisors is an integer number (3705912).

Almost surely, 2^42204785 is an apocalyptic number.

It is an amenable number.

42204785 is a deficient number, since it is larger than the sum of its proper divisors (17089807).

42204785 is a wasteful number, since it uses less digits than its factorization.

42204785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29464.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 42204785 is about 6496.5209920387. The cubic root of 42204785 is about 348.1666996518.

The spelling of 42204785 in words is "forty-two million, two hundred four thousand, seven hundred eighty-five".