774213140 has 96 divisors (see below), whose sum is σ = 1776660480. Its totient is φ = 282420864.

The previous prime is 774213119. The next prime is 774213149. The reversal of 774213140 is 41312477.

It is a super-2 number, since 2×774213140² = 1198811972297319200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774213149) 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 31 ways as a sum of consecutive naturals, for example, 1196297 + ... + 1196943.

It is an arithmetic number, because the mean of its divisors is an integer number (18506880).

Almost surely, 2^774213140 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 774213140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888330240).

774213140 is an abundant number, since it is smaller than the sum of its proper divisors (1002447340).

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

774213140 is a wasteful number, since it uses less digits than its factorization.

774213140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 774213140 is about 27824.6858023590. The cubic root of 774213140 is about 918.2343024126.

The spelling of 774213140 in words is "seven hundred seventy-four million, two hundred thirteen thousand, one hundred forty".