1940919 has 8 divisors (see below), whose sum is σ = 2599680. Its totient is φ = 1288056.

The previous prime is 1940903. The next prime is 1940929. The reversal of 1940919 is 9190491.

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

It is not a de Polignac number, because 1940919 - 2⁴ = 1940903 is a prime.

It is a super-2 number, since 2×1940919² = 7534333129122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1940919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940929) 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, 637 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (324960).

2^1940919 is an apocalyptic number.

1940919 is a deficient number, since it is larger than the sum of its proper divisors (658761).

1940919 is a wasteful number, since it uses less digits than its factorization.

1940919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 1940919 is about 1393.1686904320. The cubic root of 1940919 is about 124.7390609991.

The spelling of 1940919 in words is "one million, nine hundred forty thousand, nine hundred nineteen".