994420 has 24 divisors (see below), whose sum is σ = 2386944. Its totient is φ = 340896.

The previous prime is 994417. The next prime is 994447. The reversal of 994420 is 24499.

It is a super-2 number, since 2×994420² = 1977742272800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a plaindrome in base 15.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 3412 + ... + 3691.

It is an arithmetic number, because the mean of its divisors is an integer number (99456).

2⁹⁹⁴⁴²⁰ is an apocalyptic number.

It is an amenable number.

994420 is an abundant number, since it is smaller than the sum of its proper divisors (1392524).

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

994420 is a wasteful number, since it uses less digits than its factorization.

994420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7119 (or 7117 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 994420 is about 997.2060970532. The cubic root of 994420 is about 99.8136529635.

It can be divided in two parts, 99 and 4420, that multiplied together give a triangular number (437580 = T₉₃₅).

The spelling of 994420 in words is "nine hundred ninety-four thousand, four hundred twenty".