283272780 has 96 divisors (see below), whose sum is σ = 908683776. Its totient is φ = 64590336.

The previous prime is 283272739. The next prime is 283272791. The reversal of 283272780 is 87272382.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330112 + ... + 330968.

It is an arithmetic number, because the mean of its divisors is an integer number (9465456).

Almost surely, 2^283272780 is an apocalyptic number.

283272780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283272780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454341888).

283272780 is an abundant number, since it is smaller than the sum of its proper divisors (625410996).

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

283272780 is a wasteful number, since it uses less digits than its factorization.

283272780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 283272780 is about 16830.7094324630. The cubic root of 283272780 is about 656.7523188998.

The spelling of 283272780 in words is "two hundred eighty-three million, two hundred seventy-two thousand, seven hundred eighty".