285345445 has 32 divisors (see below), whose sum is σ = 437342976. Its totient is φ = 173529600.

The previous prime is 285345433. The next prime is 285345457. The reversal of 285345445 is 544543582.

It is an interprime number because it is at equal distance from previous prime (285345433) and next prime (285345457).

It is not a de Polignac number, because 285345445 - 2⁷ = 285345317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285345398 and 285345407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6747 + ... + 24823.

It is an arithmetic number, because the mean of its divisors is an integer number (13666968).

Almost surely, 2^285345445 is an apocalyptic number.

It is an amenable number.

285345445 is a deficient number, since it is larger than the sum of its proper divisors (151997531).

285345445 is a wasteful number, since it uses less digits than its factorization.

285345445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18141.

The product of its digits is 384000, while the sum is 40.

The square root of 285345445 is about 16892.1711156382. The cubic root of 285345445 is about 658.3502145256.

The spelling of 285345445 in words is "two hundred eighty-five million, three hundred forty-five thousand, four hundred forty-five".