780448152 has 64 divisors (see below), whose sum is σ = 2163432960. Its totient is φ = 232617600.

The previous prime is 780448139. The next prime is 780448159. The reversal of 780448152 is 251844087.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 780448152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780448159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8128 + ... + 40335.

It is an arithmetic number, because the mean of its divisors is an integer number (33803640).

Almost surely, 2^780448152 is an apocalyptic number.

It is an amenable number.

780448152 is an abundant number, since it is smaller than the sum of its proper divisors (1382984808).

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

780448152 is a wasteful number, since it uses less digits than its factorization.

780448152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48544 (or 48540 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 780448152 is about 27936.5021432534. The cubic root of 780448152 is about 920.6926699129.

The spelling of 780448152 in words is "seven hundred eighty million, four hundred forty-eight thousand, one hundred fifty-two".