78882040 has 64 divisors (see below), whose sum is σ = 189034560. Its totient is φ = 29521920.

The previous prime is 78882031. The next prime is 78882071. The reversal of 78882040 is 4028887.

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

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, 211294 + ... + 211666.

It is an arithmetic number, because the mean of its divisors is an integer number (2953665).

Almost surely, 2^78882040 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 78882040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94517280).

78882040 is an abundant number, since it is smaller than the sum of its proper divisors (110152520).

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

78882040 is a wasteful number, since it uses less digits than its factorization.

78882040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 78882040 is about 8881.5561699513. The cubic root of 78882040 is about 428.8703719573.

It can be divided in two parts, 788 and 82040, that added together give a palindrome (82828).

The spelling of 78882040 in words is "seventy-eight million, eight hundred eighty-two thousand, forty".