284913140 has 24 divisors (see below), whose sum is σ = 600536832. Its totient is φ = 113542560.

The previous prime is 284913133. The next prime is 284913143. The reversal of 284913140 is 41319482.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 284913097 and 284913106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284913143) 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, 20864 + ... + 31703.

It is an arithmetic number, because the mean of its divisors is an integer number (25022368).

Almost surely, 2^284913140 is an apocalyptic number.

284913140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284913140 is an abundant number, since it is smaller than the sum of its proper divisors (315623692).

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

284913140 is a wasteful number, since it uses less digits than its factorization.

284913140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52847 (or 52845 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 284913140 is about 16879.3702489163. The cubic root of 284913140 is about 658.0175745099.

The spelling of 284913140 in words is "two hundred eighty-four million, nine hundred thirteen thousand, one hundred forty".