82424419 has 24 divisors (see below), whose sum is σ = 107450928. Its totient is φ = 62475840.

The previous prime is 82424401. The next prime is 82424437. The reversal of 82424419 is 91442428.

It is an interprime number because it is at equal distance from previous prime (82424401) and next prime (82424437).

It is not a de Polignac number, because 82424419 - 2⁷ = 82424291 is a prime.

It is a super-2 number, since 2×82424419² = 13587569694975122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82424219) 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, 17877 + ... + 22009.

It is an arithmetic number, because the mean of its divisors is an integer number (4477122).

Almost surely, 2^82424419 is an apocalyptic number.

82424419 is a deficient number, since it is larger than the sum of its proper divisors (25026509).

82424419 is a wasteful number, since it uses less digits than its factorization.

82424419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195 (or 4188 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 82424419 is about 9078.7895118237. The cubic root of 82424419 is about 435.1964040211.

Subtracting 82424419 from its reverse (91442428), we obtain a square (9018009 = 3003²).

The spelling of 82424419 in words is "eighty-two million, four hundred twenty-four thousand, four hundred nineteen".