1816295419 has 4 divisors (see below), whose sum is σ = 1923136344. Its totient is φ = 1709454496.

The previous prime is 1816295417. The next prime is 1816295483. The reversal of 1816295419 is 9145926181.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1816295419 - 2¹ = 1816295417 is a prime.

It is a super-2 number, since 2×1816295419² = 6597858098160771122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1816295413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53420437 + ... + 53420470.

It is an arithmetic number, because the mean of its divisors is an integer number (480784086).

Almost surely, 2^1816295419 is an apocalyptic number.

1816295419 is a deficient number, since it is larger than the sum of its proper divisors (106840925).

1816295419 is a wasteful number, since it uses less digits than its factorization.

1816295419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106840924.

The product of its digits is 155520, while the sum is 46.

The square root of 1816295419 is about 42618.0175395337. The cubic root of 1816295419 is about 1220.1001931061.

The spelling of 1816295419 in words is "one billion, eight hundred sixteen million, two hundred ninety-five thousand, four hundred nineteen".