285407814 has 16 divisors (see below), whose sum is σ = 571713840. Its totient is φ = 94986240.

The previous prime is 285407791. The next prime is 285407819. The reversal of 285407814 is 418704582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285407819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33259 + ... + 40950.

It is an arithmetic number, because the mean of its divisors is an integer number (35732115).

Almost surely, 2^285407814 is an apocalyptic number.

285407814 is an abundant number, since it is smaller than the sum of its proper divisors (286306026).

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

285407814 is a wasteful number, since it uses less digits than its factorization.

285407814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74855.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 285407814 is about 16894.0171066564. The cubic root of 285407814 is about 658.3981770379.

The spelling of 285407814 in words is "two hundred eighty-five million, four hundred seven thousand, eight hundred fourteen".