42285047 has 4 divisors (see below), whose sum is σ = 48325776. Its totient is φ = 36244320.

The previous prime is 42285041. The next prime is 42285053. The reversal of 42285047 is 74058224.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42285041) and next prime (42285053).

It is not a de Polignac number, because 42285047 - 2⁸ = 42284791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42285041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3020354 + ... + 3020367.

It is an arithmetic number, because the mean of its divisors is an integer number (12081444).

Almost surely, 2^42285047 is an apocalyptic number.

42285047 is a deficient number, since it is larger than the sum of its proper divisors (6040729).

42285047 is an equidigital number, since it uses as much as digits as its factorization.

42285047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040728.

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

The square root of 42285047 is about 6502.6953642317. The cubic root of 42285047 is about 348.3872659535.

The spelling of 42285047 in words is "forty-two million, two hundred eighty-five thousand, forty-seven".