78344308 has 12 divisors (see below), whose sum is σ = 156688672. Its totient is φ = 33576120.

The previous prime is 78344293. The next prime is 78344309. The reversal of 78344308 is 80344387.

78344308 is an admirable number.

It is a super-2 number, since 2×78344308² = 12275661191997728, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78344309) 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 3 ways as a sum of consecutive naturals, for example, 1398978 + ... + 1399033.

Almost surely, 2^78344308 is an apocalyptic number.

It is an amenable number.

78344308 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.

78344308 is a wasteful number, since it uses less digits than its factorization.

78344308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798022 (or 2798020 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 78344308 is about 8851.2320046421. The cubic root of 78344308 is about 427.8936251200.

The spelling of 78344308 in words is "seventy-eight million, three hundred forty-four thousand, three hundred eight".