82400460 has 24 divisors (see below), whose sum is σ = 230721456. Its totient is φ = 21973440.

The previous prime is 82400453. The next prime is 82400477. The reversal of 82400460 is 6400428.

It is a self number, because there is not a number n which added to its sum of digits gives 82400460.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686611 + ... + 686730.

It is an arithmetic number, because the mean of its divisors is an integer number (9613394).

Almost surely, 2^82400460 is an apocalyptic number.

It is an amenable number.

82400460 is an abundant number, since it is smaller than the sum of its proper divisors (148320996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82400460 is a wasteful number, since it uses less digits than its factorization.

82400460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373353 (or 1373351 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 82400460 is about 9077.4699118201. The cubic root of 82400460 is about 435.1542325334.

Adding to 82400460 its reverse (6400428), we get a palindrome (88800888).

The spelling of 82400460 in words is "eighty-two million, four hundred thousand, four hundred sixty".