994390 has 8 divisors (see below), whose sum is σ = 1789920. Its totient is φ = 397752.

The previous prime is 994369. The next prime is 994391. The reversal of 994390 is 93499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×994390² = 1977622944200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994391) by changing a digit.

994390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49710 + ... + 49729.

It is an arithmetic number, because the mean of its divisors is an integer number (223740).

2⁹⁹⁴³⁹⁰ is an apocalyptic number.

994390 is a deficient number, since it is larger than the sum of its proper divisors (795530).

994390 is a wasteful number, since it uses less digits than its factorization.

994390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99446.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 994390 is about 997.1910549138. The cubic root of 994390 is about 99.8126492160.

It can be divided in two parts, 99 and 4390, that added together give a square (4489 = 67²).

The spelling of 994390 in words is "nine hundred ninety-four thousand, three hundred ninety".