283402328 has 72 divisors (see below), whose sum is σ = 617197140. Its totient is φ = 121888800.

The previous prime is 283402313. The next prime is 283402333. The reversal of 283402328 is 823204382.

It is a junction number, because it is equal to n+sod(n) for n = 283402294 and 283402303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 349043 + ... + 349853.

Almost surely, 2^283402328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283402328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308598570).

283402328 is an abundant number, since it is smaller than the sum of its proper divisors (333794812).

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

283402328 is a wasteful number, since it uses less digits than its factorization.

283402328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 283402328 is about 16834.5575528435. The cubic root of 283402328 is about 656.8524202730.

The spelling of 283402328 in words is "two hundred eighty-three million, four hundred two thousand, three hundred twenty-eight".