774033640 has 16 divisors (see below), whose sum is σ = 1741575780. Its totient is φ = 309613440.

The previous prime is 774033619. The next prime is 774033643. The reversal of 774033640 is 46330477.

It can be written as a sum of positive squares in 2 ways, for example, as 622103364 + 151930276 = 24942^2 + 12326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 774033596 and 774033605.

It is not an unprimeable number, because it can be changed into a prime (774033643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9675381 + ... + 9675460.

Almost surely, 2^774033640 is an apocalyptic number.

It is an amenable number.

774033640 is an abundant number, since it is smaller than the sum of its proper divisors (967542140).

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

774033640 is a wasteful number, since it uses less digits than its factorization.

774033640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19350852 (or 19350848 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 774033640 is about 27821.4600623332. The cubic root of 774033640 is about 918.1633332404.

The spelling of 774033640 in words is "seven hundred seventy-four million, thirty-three thousand, six hundred forty".