780606344 has 32 divisors (see below), whose sum is σ = 1701086400. Its totient is φ = 328873920.

The previous prime is 780606341. The next prime is 780606349. The reversal of 780606344 is 443606087.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 780606298 and 780606307.

It is not an unprimeable number, because it can be changed into a prime (780606341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114827 + ... + 121434.

It is an arithmetic number, because the mean of its divisors is an integer number (53158950).

Almost surely, 2^780606344 is an apocalyptic number.

It is an amenable number.

780606344 is an abundant number, since it is smaller than the sum of its proper divisors (920480056).

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

780606344 is a wasteful number, since it uses less digits than its factorization.

780606344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236333 (or 236329 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 780606344 is about 27939.3332776571. Note that the first 3 decimals coincide. The cubic root of 780606344 is about 920.7548719418.

The spelling of 780606344 in words is "seven hundred eighty million, six hundred six thousand, three hundred forty-four".