1994920 has 32 divisors (see below), whose sum is σ = 4578120. Its totient is φ = 782080.

The previous prime is 1994911. The next prime is 1994947. The reversal of 1994920 is 294991.

It can be written as a sum of positive squares in 4 ways, for example, as 1833316 + 161604 = 1354^2 + 402^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1650 + ... + 2590.

2^1994920 is an apocalyptic number.

1994920 is a gapful number since it is divisible by the number (10) 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 1994920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2289060).

1994920 is an abundant number, since it is smaller than the sum of its proper divisors (2583200).

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

1994920 is a wasteful number, since it uses less digits than its factorization.

1994920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 1994920 is about 1412.4163692056. The cubic root of 1994920 is about 125.8853412295.

The spelling of 1994920 in words is "one million, nine hundred ninety-four thousand, nine hundred twenty".