1994870 has 8 divisors (see below), whose sum is σ = 3590784. Its totient is φ = 797944.

The previous prime is 1994869. The next prime is 1994879. The reversal of 1994870 is 784991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99734 + ... + 99753.

It is an arithmetic number, because the mean of its divisors is an integer number (448848).

2^1994870 is an apocalyptic number.

1994870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1994870 is a deficient number, since it is larger than the sum of its proper divisors (1595914).

1994870 is a wasteful number, since it uses less digits than its factorization.

1994870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199494.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1994870 is about 1412.3986689317. The cubic root of 1994870 is about 125.8842895049.

The spelling of 1994870 in words is "one million, nine hundred ninety-four thousand, eight hundred seventy".