816082419 has 4 divisors (see below), whose sum is σ = 1088109896. Its totient is φ = 544054944.

The previous prime is 816082391. The next prime is 816082427. The reversal of 816082419 is 914280618.

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

It is not a de Polignac number, because 816082419 - 2¹⁷ = 815951347 is a prime.

It is a super-2 number, since 2×816082419² = 1331981029201783122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816082459) 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, 136013734 + ... + 136013739.

It is an arithmetic number, because the mean of its divisors is an integer number (272027474).

Almost surely, 2^816082419 is an apocalyptic number.

816082419 is a deficient number, since it is larger than the sum of its proper divisors (272027477).

816082419 is a wasteful number, since it uses less digits than its factorization.

816082419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272027476.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 816082419 is about 28567.1562987988. The cubic root of 816082419 is about 934.4972061038.

The spelling of 816082419 in words is "eight hundred sixteen million, eighty-two thousand, four hundred nineteen".