283613988 has 96 divisors (see below), whose sum is σ = 806077440. Its totient is φ = 75807360.

The previous prime is 283613983. The next prime is 283614013. The reversal of 283613988 is 889316382.

It is not an unprimeable number, because it can be changed into a prime (283613983) 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, 131398 + ... + 133538.

It is an arithmetic number, because the mean of its divisors is an integer number (8396640).

Almost surely, 2^283613988 is an apocalyptic number.

283613988 is a gapful number since it is divisible by the number (28) 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 283613988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403038720).

283613988 is an abundant number, since it is smaller than the sum of its proper divisors (522463452).

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

283613988 is a wasteful number, since it uses less digits than its factorization.

283613988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257 (or 2255 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 283613988 is about 16840.8428530166. The cubic root of 283613988 is about 657.0159037408.

It can be divided in two parts, 28 and 3613988, that added together give a triangular number (3614016 = T₂₆₈₈).

The spelling of 283613988 in words is "two hundred eighty-three million, six hundred thirteen thousand, nine hundred eighty-eight".