42785361 has 8 divisors (see below), whose sum is σ = 63385760. Its totient is φ = 28523556.

The previous prime is 42785299. The next prime is 42785389. The reversal of 42785361 is 16358724.

It is not a de Polignac number, because 42785361 - 2⁶ = 42785297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42785161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792295 + ... + 792348.

It is an arithmetic number, because the mean of its divisors is an integer number (7923220).

Almost surely, 2^42785361 is an apocalyptic number.

It is an amenable number.

42785361 is a deficient number, since it is larger than the sum of its proper divisors (20600399).

42785361 is a wasteful number, since it uses less digits than its factorization.

42785361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584652 (or 1584646 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 42785361 is about 6541.0519796131. The cubic root of 42785361 is about 349.7559141708.

The spelling of 42785361 in words is "forty-two million, seven hundred eighty-five thousand, three hundred sixty-one".