78182830 has 32 divisors (see below), whose sum is σ = 162557280. Its totient is φ = 26757120.

The previous prime is 78182809. The next prime is 78182843. The reversal of 78182830 is 3828187.

It is a super-2 number, since 2×78182830² = 12225109813617800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78182830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19035 + ... + 22774.

It is an arithmetic number, because the mean of its divisors is an integer number (5079915).

Almost surely, 2^78182830 is an apocalyptic number.

78182830 is an abundant number, since it is smaller than the sum of its proper divisors (84374450).

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

78182830 is a wasteful number, since it uses less digits than its factorization.

78182830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41844.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 78182830 is about 8842.1055184837. The cubic root of 78182830 is about 427.5994410898.

It can be divided in two parts, 7818 and 2830, that added together give a cube (10648 = 22³).

The spelling of 78182830 in words is "seventy-eight million, one hundred eighty-two thousand, eight hundred thirty".