774414440 has 64 divisors (see below), whose sum is σ = 1796936400. Its totient is φ = 300146688.

The previous prime is 774414427. The next prime is 774414449. The reversal of 774414440 is 44414477.

It can be written as a sum of positive squares in 8 ways, for example, as 363054916 + 411359524 = 19054^2 + 20282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 774414440.

It is not an unprimeable number, because it can be changed into a prime (774414449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409016 + ... + 410904.

Almost surely, 2^774414440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774414440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898468200).

774414440 is an abundant number, since it is smaller than the sum of its proper divisors (1022521960).

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

774414440 is a wasteful number, since it uses less digits than its factorization.

774414440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2210 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 35.

The square root of 774414440 is about 27828.3028587803. The cubic root of 774414440 is about 918.3138776346.

The spelling of 774414440 in words is "seven hundred seventy-four million, four hundred fourteen thousand, four hundred forty".