42735285 has 12 divisors (see below), whose sum is σ = 74074572. Its totient is φ = 22792128.

The previous prime is 42735281. The next prime is 42735317. The reversal of 42735285 is 58253724.

It can be written as a sum of positive squares in 2 ways, for example, as 15046641 + 27688644 = 3879^2 + 5262^2 .

It is not a de Polignac number, because 42735285 - 2² = 42735281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42735281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474792 + ... + 474881.

It is an arithmetic number, because the mean of its divisors is an integer number (6172881).

Almost surely, 2^42735285 is an apocalyptic number.

42735285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42735285 is a deficient number, since it is larger than the sum of its proper divisors (31339287).

42735285 is a wasteful number, since it uses less digits than its factorization.

42735285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949684 (or 949681 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 42735285 is about 6537.2230342860. The cubic root of 42735285 is about 349.6194094244.

The spelling of 42735285 in words is "forty-two million, seven hundred thirty-five thousand, two hundred eighty-five".