1894040 has 16 divisors (see below), whose sum is σ = 4261680. Its totient is φ = 757600.

The previous prime is 1894037. The next prime is 1894043. The reversal of 1894040 is 404981.

It is an interprime number because it is at equal distance from previous prime (1894037) and next prime (1894043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894043) by changing a digit.

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, 23636 + ... + 23715.

It is an arithmetic number, because the mean of its divisors is an integer number (266355).

2^1894040 is an apocalyptic number.

1894040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1894040 is an abundant number, since it is smaller than the sum of its proper divisors (2367640).

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

1894040 is a wasteful number, since it uses less digits than its factorization.

1894040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47362 (or 47358 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1894040 is about 1376.2412579196. The cubic root of 1894040 is about 123.7265914979.

The spelling of 1894040 in words is "one million, eight hundred ninety-four thousand, forty".