283278072 has 256 divisors, whose sum is σ = 955514880. Its totient is φ = 67737600.

The previous prime is 283278053. The next prime is 283278101. The reversal of 283278072 is 270872382.

It is a self number, because there is not a number n which added to its sum of digits gives 283278072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2230473 + ... + 2230599.

It is an arithmetic number, because the mean of its divisors is an integer number (3732480).

Almost surely, 2^283278072 is an apocalyptic number.

283278072 is a gapful number since it is divisible by the number (22) 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 283278072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477757440).

283278072 is an abundant number, since it is smaller than the sum of its proper divisors (672236808).

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

283278072 is a wasteful number, since it uses less digits than its factorization.

283278072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 283278072 is about 16830.8666443532. The cubic root of 283278072 is about 656.7564086111.

The spelling of 283278072 in words is "two hundred eighty-three million, two hundred seventy-eight thousand, seventy-two".