780118272 has 108 divisors (see below), whose sum is σ = 2257025680. Its totient is φ = 259144704.

The previous prime is 780118271. The next prime is 780118279. The reversal of 780118272 is 272811087.

It is a happy number.

780118272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (780118271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1259979 + ... + 1260597.

Almost surely, 2^780118272 is an apocalyptic number.

780118272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 780118272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128512840).

780118272 is an abundant number, since it is smaller than the sum of its proper divisors (1476907408).

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

780118272 is a wasteful number, since it uses less digits than its factorization.

780118272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 780118272 is about 27930.5974157375. The cubic root of 780118272 is about 920.5629321039.

The spelling of 780118272 in words is "seven hundred eighty million, one hundred eighteen thousand, two hundred seventy-two".