82424019 has 24 divisors (see below), whose sum is σ = 115944192. Its totient is φ = 52077520.

The previous prime is 82424011. The next prime is 82424029. The reversal of 82424019 is 91042428.

It is not a de Polignac number, because 82424019 - 2³ = 82424011 is a prime.

It is a super-2 number, since 2×82424019² = 13587437816224722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82424011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264874 + ... + 265184.

It is an arithmetic number, because the mean of its divisors is an integer number (4831008).

Almost surely, 2^82424019 is an apocalyptic number.

82424019 is a deficient number, since it is larger than the sum of its proper divisors (33520173).

82424019 is a wasteful number, since it uses less digits than its factorization.

82424019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 82424019 is about 9078.7674824284. The cubic root of 82424019 is about 435.1957000272.

The spelling of 82424019 in words is "eighty-two million, four hundred twenty-four thousand, nineteen".