283457880 has 160 divisors (see below), whose sum is σ = 964418400. Its totient is φ = 74663424.

The previous prime is 283457843. The next prime is 283457897. The reversal of 283457880 is 88754382.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 287869 + ... + 288851.

It is an arithmetic number, because the mean of its divisors is an integer number (6027615).

Almost surely, 2^283457880 is an apocalyptic number.

283457880 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 283457880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482209200).

283457880 is an abundant number, since it is smaller than the sum of its proper divisors (680960520).

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

283457880 is a wasteful number, since it uses less digits than its factorization.

283457880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 283457880 is about 16836.2074114095. The cubic root of 283457880 is about 656.8953358011.

The spelling of 283457880 in words is "two hundred eighty-three million, four hundred fifty-seven thousand, eight hundred eighty".