283655320 has 128 divisors (see below), whose sum is σ = 737735040. Its totient is φ = 97320960.

The previous prime is 283655249. The next prime is 283655321. The reversal of 283655320 is 23556382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283655321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 442200 + ... + 442840.

It is an arithmetic number, because the mean of its divisors is an integer number (5763555).

Almost surely, 2^283655320 is an apocalyptic number.

283655320 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 283655320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368867520).

283655320 is an abundant number, since it is smaller than the sum of its proper divisors (454079720).

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

283655320 is a wasteful number, since it uses less digits than its factorization.

283655320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 283655320 is about 16842.0699440419. The cubic root of 283655320 is about 657.0478185539.

The spelling of 283655320 in words is "two hundred eighty-three million, six hundred fifty-five thousand, three hundred twenty".