769640450 has 12 divisors (see below), whose sum is σ = 1431531330. Its totient is φ = 307856160.

The previous prime is 769640449. The next prime is 769640527. The reversal of 769640450 is 54046967.

769640450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 676884289 + 92756161 = 26017^2 + 9631^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 769640398 and 769640407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7696355 + ... + 7696454.

Almost surely, 2^769640450 is an apocalyptic number.

769640450 is a deficient number, since it is larger than the sum of its proper divisors (661890880).

769640450 is a wasteful number, since it uses less digits than its factorization.

769640450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15392821 (or 15392816 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 769640450 is about 27742.3944532551. The cubic root of 769640450 is about 916.4229603743.

The spelling of 769640450 in words is "seven hundred sixty-nine million, six hundred forty thousand, four hundred fifty".