78352080 has 40 divisors (see below), whose sum is σ = 242892192. Its totient is φ = 20893824.

The previous prime is 78352061. The next prime is 78352091. The reversal of 78352080 is 8025387.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×78352080² = 12278096880652800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 162994 + ... + 163473.

Almost surely, 2^78352080 is an apocalyptic number.

It is an amenable number.

78352080 is an abundant number, since it is smaller than the sum of its proper divisors (164540112).

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

78352080 is a wasteful number, since it uses less digits than its factorization.

78352080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326483 (or 326477 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 78352080 is about 8851.6710286815. The cubic root of 78352080 is about 427.9077741134.

The spelling of 78352080 in words is "seventy-eight million, three hundred fifty-two thousand, eighty".