780380474 has 4 divisors (see below), whose sum is σ = 1170570714. Its totient is φ = 390190236.

The previous prime is 780380473. The next prime is 780380509. The reversal of 780380474 is 474083087.

780380474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474083087 = 15581 ⋅30427.

It can be written as a sum of positive squares in only one way, i.e., 683456449 + 96924025 = 26143^2 + 9845^2 .

It is not an unprimeable number, because it can be changed into a prime (780380473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195095117 + ... + 195095120.

Almost surely, 2^780380474 is an apocalyptic number.

780380474 is a deficient number, since it is larger than the sum of its proper divisors (390190240).

780380474 is a wasteful number, since it uses less digits than its factorization.

780380474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390190239.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 780380474 is about 27935.2908343550. The cubic root of 780380474 is about 920.6660559563. Note that the first 3 decimals are identical.

The spelling of 780380474 in words is "seven hundred eighty million, three hundred eighty thousand, four hundred seventy-four".