285844042 has 16 divisors (see below), whose sum is σ = 468214272. Its totient is φ = 129798720.

The previous prime is 285844033. The next prime is 285844051. The reversal of 285844042 is 240448582.

It is an interprime number because it is at equal distance from previous prime (285844033) and next prime (285844051).

It is a junction number, because it is equal to n+sod(n) for n = 285843992 and 285844010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17938 + ... + 29890.

It is an arithmetic number, because the mean of its divisors is an integer number (29263392).

Almost surely, 2^285844042 is an apocalyptic number.

285844042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

285844042 is a deficient number, since it is larger than the sum of its proper divisors (182370230).

285844042 is a wasteful number, since it uses less digits than its factorization.

285844042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13053.

The product of its (nonzero) digits is 81920, while the sum is 37.

The square root of 285844042 is about 16906.9229015809. The cubic root of 285844042 is about 658.7334464333.

The spelling of 285844042 in words is "two hundred eighty-five million, eight hundred forty-four thousand, forty-two".