82380578 has 16 divisors (see below), whose sum is σ = 145780224. Its totient is φ = 34166880.

The previous prime is 82380553. The next prime is 82380581. The reversal of 82380578 is 87508328.

It is a super-2 number, since 2×82380578² = 13573119263228168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94475 + ... + 95342.

It is an arithmetic number, because the mean of its divisors is an integer number (9111264).

Almost surely, 2^82380578 is an apocalyptic number.

82380578 is a deficient number, since it is larger than the sum of its proper divisors (63399646).

82380578 is a wasteful number, since it uses less digits than its factorization.

82380578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189857.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 82380578 is about 9076.3747168129. The cubic root of 82380578 is about 435.1192309797.

The spelling of 82380578 in words is "eighty-two million, three hundred eighty thousand, five hundred seventy-eight".