283227840 has 420 divisors, whose sum is σ = 1177235136. Its totient is φ = 64447488.

The previous prime is 283227839. The next prime is 283227863. The reversal of 283227840 is 48722382.

It is a tau number, because it is divible by the number of its divisors (420).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 283227795 and 283227804.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1269969 + ... + 1270191.

Almost surely, 2^283227840 is an apocalyptic number.

283227840 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 283227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588617568).

283227840 is an abundant number, since it is smaller than the sum of its proper divisors (894007296).

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

283227840 is a wasteful number, since it uses less digits than its factorization.

283227840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 283227840 is about 16829.3743199205. The cubic root of 283227840 is about 656.7175867592.

The spelling of 283227840 in words is "two hundred eighty-three million, two hundred twenty-seven thousand, eight hundred forty".