283000040 has 32 divisors (see below), whose sum is σ = 652284360. Its totient is φ = 110438400.

The previous prime is 283000031. The next prime is 283000057. The reversal of 283000040 is 40000382.

It can be written as a sum of positive squares in 4 ways, for example, as 154902916 + 128097124 = 12446^2 + 11318^2 .

It is a junction number, because it is equal to n+sod(n) for n = 282999982 and 283000018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84641 + ... + 87920.

Almost surely, 2^283000040 is an apocalyptic number.

283000040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283000040 is an abundant number, since it is smaller than the sum of its proper divisors (369284320).

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

283000040 is a wasteful number, since it uses less digits than its factorization.

283000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172613 (or 172609 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 283000040 is about 16822.6050301373. The cubic root of 283000040 is about 656.5414736671.

The spelling of 283000040 in words is "two hundred eighty-three million, forty", and thus it is an aban number.