1969994 has 16 divisors (see below), whose sum is σ = 3370248. Its totient is φ = 855552.

The previous prime is 1969993. The next prime is 1969997. The reversal of 1969994 is 4999691.

It can be written as a sum of positive squares in 4 ways, for example, as 1755625 + 214369 = 1325^2 + 463^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1969993) 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 7 ways as a sum of consecutive naturals, for example, 1787 + ... + 2670.

2^1969994 is an apocalyptic number.

1969994 is a deficient number, since it is larger than the sum of its proper divisors (1400254).

1969994 is a wasteful number, since it uses less digits than its factorization.

1969994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489.

The product of its digits is 157464, while the sum is 47.

The square root of 1969994 is about 1403.5647473487. The cubic root of 1969994 is about 125.3588408800.

The spelling of 1969994 in words is "one million, nine hundred sixty-nine thousand, nine hundred ninety-four".