994280 has 64 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 329472.

The previous prime is 994271. The next prime is 994297. The reversal of 994280 is 82499.

994280 = 33² + 34² + ... + 144².

It is an Ulam number.

It is an unprimeable number.

994280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14807 + ... + 14873.

It is an arithmetic number, because the mean of its divisors is an integer number (41310).

2⁹⁹⁴²⁸⁰ 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 994280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321920).

994280 is an abundant number, since it is smaller than the sum of its proper divisors (1649560).

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

994280 is a wasteful number, since it uses less digits than its factorization.

994280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 994280 is about 997.1358984612. The cubic root of 994280 is about 99.8089686359.

The spelling of 994280 in words is "nine hundred ninety-four thousand, two hundred eighty".