78001308 has 144 divisors (see below), whose sum is σ = 258935040. Its totient is φ = 19180800.

The previous prime is 78001307. The next prime is 78001409. The reversal of 78001308 is 80310087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78001307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51928 + ... + 53408.

It is an arithmetic number, because the mean of its divisors is an integer number (1798160).

Almost surely, 2^78001308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78001308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129467520).

78001308 is an abundant number, since it is smaller than the sum of its proper divisors (180933732).

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

78001308 is a wasteful number, since it uses less digits than its factorization.

78001308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 78001308 is about 8831.8349169354. The cubic root of 78001308 is about 427.2682564631.

The spelling of 78001308 in words is "seventy-eight million, one thousand, three hundred eight".