283809340 has 24 divisors (see below), whose sum is σ = 615226752. Its totient is φ = 109861440.

The previous prime is 283809311. The next prime is 283809347. The reversal of 283809340 is 43908382.

It is a self number, because there is not a number n which added to its sum of digits gives 283809340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283809347) 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, 228259 + ... + 229498.

It is an arithmetic number, because the mean of its divisors is an integer number (25634448).

Almost surely, 2^283809340 is an apocalyptic number.

283809340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283809340 is an abundant number, since it is smaller than the sum of its proper divisors (331417412).

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

283809340 is a wasteful number, since it uses less digits than its factorization.

283809340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457797 (or 457795 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 283809340 is about 16846.6418018548. The cubic root of 283809340 is about 657.1667189553.

The spelling of 283809340 in words is "two hundred eighty-three million, eight hundred nine thousand, three hundred forty".