780029046 has 24 divisors (see below), whose sum is σ = 1691077440. Its totient is φ = 259853616.

The previous prime is 780029039. The next prime is 780029051. The reversal of 780029046 is 640920087.

780029046 = 13963² + 13964² + ... + 13966².

It is a self number, because there is not a number n which added to its sum of digits gives 780029046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20091 + ... + 44313.

It is an arithmetic number, because the mean of its divisors is an integer number (70461560).

Almost surely, 2^780029046 is an apocalyptic number.

780029046 is an abundant number, since it is smaller than the sum of its proper divisors (911048394).

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

780029046 is a wasteful number, since it uses less digits than its factorization.

780029046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26020 (or 26017 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 780029046 is about 27929.0000895127. Note that the first 4 decimals coincide. The cubic root of 780029046 is about 920.5278343147.

The spelling of 780029046 in words is "seven hundred eighty million, twenty-nine thousand, forty-six".