285296940 has 36 divisors (see below), whose sum is σ = 865401264. Its totient is φ = 76079136.

The previous prime is 285296923. The next prime is 285296953. The reversal of 285296940 is 49692582.

285296940 is a `hidden beast` number, since 28 + 529 + 69 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 792312 + ... + 792671.

It is an arithmetic number, because the mean of its divisors is an integer number (24038924).

Almost surely, 2^285296940 is an apocalyptic number.

285296940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285296940 is an abundant number, since it is smaller than the sum of its proper divisors (580104324).

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

285296940 is a wasteful number, since it uses less digits than its factorization.

285296940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584998 (or 1584993 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 285296940 is about 16890.7353303520. The cubic root of 285296940 is about 658.3129087648.

The spelling of 285296940 in words is "two hundred eighty-five million, two hundred ninety-six thousand, nine hundred forty".