82380458 has 4 divisors (see below), whose sum is σ = 123570690. Its totient is φ = 41190228.

The previous prime is 82380449. The next prime is 82380481. The reversal of 82380458 is 85408328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 76965529 + 5414929 = 8773^2 + 2327^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20595113 + ... + 20595116.

Almost surely, 2^82380458 is an apocalyptic number.

82380458 is a deficient number, since it is larger than the sum of its proper divisors (41190232).

82380458 is a wasteful number, since it uses less digits than its factorization.

82380458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41190231.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 82380458 is about 9076.3681062416. The cubic root of 82380458 is about 435.1190197069.

The spelling of 82380458 in words is "eighty-two million, three hundred eighty thousand, four hundred fifty-eight".