78345932 has 12 divisors (see below), whose sum is σ = 156691920. Its totient is φ = 33576816.

The previous prime is 78345931. The next prime is 78345947. The reversal of 78345932 is 23954387.

78345932 is an admirable number.

It is a super-2 number, since 2×78345932² = 12276170121897248, 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 78345932.

It is not an unprimeable number, because it can be changed into a prime (78345931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399007 + ... + 1399062.

It is an arithmetic number, because the mean of its divisors is an integer number (13057660).

Almost surely, 2^78345932 is an apocalyptic number.

It is an amenable number.

78345932 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78345932 is a wasteful number, since it uses less digits than its factorization.

78345932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798080 (or 2798078 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 78345932 is about 8851.3237428082. The cubic root of 78345932 is about 427.8965817034.

The spelling of 78345932 in words is "seventy-eight million, three hundred forty-five thousand, nine hundred thirty-two".