774143408 has 40 divisors (see below), whose sum is σ = 1552091136. Its totient is φ = 373665600.

The previous prime is 774143401. The next prime is 774143411. The reversal of 774143408 is 804341477.

774143408 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 2×774143408² = 1198596032299708928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (774143401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227963 + ... + 231333.

Almost surely, 2^774143408 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 774143408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776045568).

774143408 is an abundant number, since it is smaller than the sum of its proper divisors (777947728).

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

774143408 is a wasteful number, since it uses less digits than its factorization.

774143408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873 (or 3867 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 774143408 is about 27823.4327141710. The cubic root of 774143408 is about 918.2067336750.

The spelling of 774143408 in words is "seven hundred seventy-four million, one hundred forty-three thousand, four hundred eight".