78469468 has 144 divisors (see below), whose sum is σ = 193052160. Its totient is φ = 27181440.

The previous prime is 78469451. The next prime is 78469477. The reversal of 78469468 is 86496487.

It is a happy number.

Its product of digits (2322432) is a multiple of the sum of its prime factors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1480530 + ... + 1480582.

It is an arithmetic number, because the mean of its divisors is an integer number (1340640).

Almost surely, 2^78469468 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 78469468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96526080).

78469468 is an abundant number, since it is smaller than the sum of its proper divisors (114582692).

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

78469468 is a wasteful number, since it uses less digits than its factorization.

78469468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 115 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 78469468 is about 8858.2993853222. The cubic root of 78469468 is about 428.1213662860.

The spelling of 78469468 in words is "seventy-eight million, four hundred sixty-nine thousand, four hundred sixty-eight".