78804480 has 160 divisors (see below), whose sum is σ = 260840448. Its totient is φ = 20275200.

The previous prime is 78804443. The next prime is 78804527. The reversal of 78804480 is 8440887.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237915 + ... + 238245.

Almost surely, 2^78804480 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 78804480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130420224).

78804480 is an abundant number, since it is smaller than the sum of its proper divisors (182035968).

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

78804480 is a wasteful number, since it uses less digits than its factorization.

78804480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 78804480 is about 8877.1887441915. The cubic root of 78804480 is about 428.7297649872.

The spelling of 78804480 in words is "seventy-eight million, eight hundred four thousand, four hundred eighty".