780458046 has 16 divisors (see below), whose sum is σ = 1611268608. Its totient is φ = 251760600.

The previous prime is 780458017. The next prime is 780458051. The reversal of 780458046 is 640854087.

780458046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×780458046² = 1218229523132276232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 780457989 and 780458007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097820 + ... + 2098191.

It is an arithmetic number, because the mean of its divisors is an integer number (100704288).

Almost surely, 2^780458046 is an apocalyptic number.

780458046 is an abundant number, since it is smaller than the sum of its proper divisors (830810562).

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

780458046 is a wasteful number, since it uses less digits than its factorization.

780458046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196047.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 780458046 is about 27936.6792228425. The cubic root of 780458046 is about 920.6965605385.

The spelling of 780458046 in words is "seven hundred eighty million, four hundred fifty-eight thousand, forty-six".