1940019 has 8 divisors (see below), whose sum is σ = 2641920. Its totient is φ = 1265736.

The previous prime is 1939999. The next prime is 1940041. The reversal of 1940019 is 9100491.

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

It is not a de Polignac number, because 1940019 - 2⁷ = 1939891 is a prime.

It is a super-2 number, since 2×1940019² = 7527347440722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1940069) 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, 6739 + ... + 7020.

It is an arithmetic number, because the mean of its divisors is an integer number (330240).

2^1940019 is an apocalyptic number.

1940019 is a deficient number, since it is larger than the sum of its proper divisors (701901).

1940019 is a wasteful number, since it uses less digits than its factorization.

1940019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13809.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1940019 is about 1392.8456483042. The cubic root of 1940019 is about 124.7197776060.

The spelling of 1940019 in words is "one million, nine hundred forty thousand, nineteen".