994590 has 48 divisors (see below), whose sum is σ = 2656368. Its totient is φ = 258048.

The previous prime is 994583. The next prime is 994603. The reversal of 994590 is 95499.

994590 = 444² + 445² + ... + 448².

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 994590.

It is an unprimeable number.

994590 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 23 ways as a sum of consecutive naturals, for example, 3742 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (55341).

2⁹⁹⁴⁵⁹⁰ is an apocalyptic number.

994590 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 994590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328184).

994590 is an abundant number, since it is smaller than the sum of its proper divisors (1661778).

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

994590 is a wasteful number, since it uses less digits than its factorization.

994590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 994590 is about 997.2913315576. The cubic root of 994590 is about 99.8193404846.

The spelling of 994590 in words is "nine hundred ninety-four thousand, five hundred ninety".