780321948 has 24 divisors (see below), whose sum is σ = 2080858752. Its totient is φ = 222949104.

The previous prime is 780321929. The next prime is 780321959. The reversal of 780321948 is 849123087.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4644690 + ... + 4644857.

It is an arithmetic number, because the mean of its divisors is an integer number (86702448).

Almost surely, 2^780321948 is an apocalyptic number.

It is an amenable number.

780321948 is an abundant number, since it is smaller than the sum of its proper divisors (1300536804).

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

780321948 is a wasteful number, since it uses less digits than its factorization.

780321948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9289561 (or 9289559 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 780321948 is about 27934.2432866903. The cubic root of 780321948 is about 920.6430397266.

The spelling of 780321948 in words is "seven hundred eighty million, three hundred twenty-one thousand, nine hundred forty-eight".