1994740 has 24 divisors (see below), whose sum is σ = 4570272. Its totient is φ = 725280.

The previous prime is 1994717. The next prime is 1994743. The reversal of 1994740 is 474991.

It is a junction number, because it is equal to n+sod(n) for n = 1994696 and 1994705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4314 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (190428).

2^1994740 is an apocalyptic number.

1994740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1994740 is an abundant number, since it is smaller than the sum of its proper divisors (2575532).

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

1994740 is a wasteful number, since it uses less digits than its factorization.

1994740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9087 (or 9085 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1994740 is about 1412.3526471813. The cubic root of 1994740 is about 125.8815549385.

The spelling of 1994740 in words is "one million, nine hundred ninety-four thousand, seven hundred forty".