78342682 has 16 divisors (see below), whose sum is σ = 128554272. Its totient is φ = 35511120.

The previous prime is 78342637. The next prime is 78342683. The reversal of 78342682 is 28624387.

It is a super-2 number, since 2×78342682² = 12275151645906248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78342683) by changing a digit.

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, 3433 + ... + 12979.

It is an arithmetic number, because the mean of its divisors is an integer number (8034642).

Almost surely, 2^78342682 is an apocalyptic number.

78342682 is a deficient number, since it is larger than the sum of its proper divisors (50211590).

78342682 is a wasteful number, since it uses less digits than its factorization.

78342682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9933.

The product of its digits is 129024, while the sum is 40.

The square root of 78342682 is about 8851.1401525453. The cubic root of 78342682 is about 427.8906648545.

The spelling of 78342682 in words is "seventy-eight million, three hundred forty-two thousand, six hundred eighty-two".