2091419 has 4 divisors (see below), whose sum is σ = 2281560. Its totient is φ = 1901280.

The previous prime is 2091409. The next prime is 2091421. The reversal of 2091419 is 9141902.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2091419 is a prime.

It is a super-2 number, since 2×2091419² = 8748066867122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2091409) 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, 95054 + ... + 95075.

It is an arithmetic number, because the mean of its divisors is an integer number (570390).

2^2091419 is an apocalyptic number.

2091419 is a deficient number, since it is larger than the sum of its proper divisors (190141).

2091419 is a wasteful number, since it uses less digits than its factorization.

2091419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190140.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 2091419 is about 1446.1739176185. The cubic root of 2091419 is about 127.8832553698.

The spelling of 2091419 in words is "two million, ninety-one thousand, four hundred nineteen".