1999494 has 36 divisors (see below), whose sum is σ = 5041764. Its totient is φ = 571032.

The previous prime is 1999471. The next prime is 1999499. The reversal of 1999494 is 4949991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999499) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 252 + ... + 2015.

It is an arithmetic number, because the mean of its divisors is an integer number (140049).

2^1999494 is an apocalyptic number.

1999494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1999494 is an abundant number, since it is smaller than the sum of its proper divisors (3042270).

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

1999494 is a wasteful number, since it uses less digits than its factorization.

1999494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289 (or 2279 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 1999494 is about 1414.0346530407. The cubic root of 1999494 is about 125.9814787591.

The spelling of 1999494 in words is "one million, nine hundred ninety-nine thousand, four hundred ninety-four".