42285340 has 24 divisors (see below), whose sum is σ = 90866160. Its totient is φ = 16520448.

The previous prime is 42285253. The next prime is 42285343. The reversal of 42285340 is 4358224.

It is a junction number, because it is equal to n+sod(n) for n = 42285299 and 42285308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42285343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23725 + ... + 25444.

It is an arithmetic number, because the mean of its divisors is an integer number (3786090).

Almost surely, 2^42285340 is an apocalyptic number.

It is an amenable number.

42285340 is an abundant number, since it is smaller than the sum of its proper divisors (48580820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42285340 is a wasteful number, since it uses less digits than its factorization.

42285340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49221 (or 49219 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 42285340 is about 6502.7178933120. The cubic root of 42285340 is about 348.3880706291.

The spelling of 42285340 in words is "forty-two million, two hundred eighty-five thousand, three hundred forty".