82540469 has 16 divisors (see below), whose sum is σ = 92664000. Its totient is φ = 72885120.

The previous prime is 82540453. The next prime is 82540489. The reversal of 82540469 is 96404528.

It is not a de Polignac number, because 82540469 - 2⁴ = 82540453 is a prime.

It is a super-2 number, since 2×82540469² = 13625858045479922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82540489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57047 + ... + 58475.

It is an arithmetic number, because the mean of its divisors is an integer number (5791500).

Almost surely, 2^82540469 is an apocalyptic number.

82540469 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

82540469 is a deficient number, since it is larger than the sum of its proper divisors (10123531).

82540469 is a wasteful number, since it uses less digits than its factorization.

82540469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 82540469 is about 9085.1785342942. The cubic root of 82540469 is about 435.4005541143.

The spelling of 82540469 in words is "eighty-two million, five hundred forty thousand, four hundred sixty-nine".