774020220 has 24 divisors (see below), whose sum is σ = 2167256784. Its totient is φ = 206405376.

The previous prime is 774020209. The next prime is 774020257. The reversal of 774020220 is 22020477.

774020220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6450109 + ... + 6450228.

It is an arithmetic number, because the mean of its divisors is an integer number (90302366).

Almost surely, 2^774020220 is an apocalyptic number.

It is an amenable number.

774020220 is an abundant number, since it is smaller than the sum of its proper divisors (1393236564).

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

774020220 is a wasteful number, since it uses less digits than its factorization.

774020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12900349 (or 12900347 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 774020220 is about 27821.2188805595. The cubic root of 774020220 is about 918.1580269150.

Adding to 774020220 its reverse (22020477), we get a palindrome (796040697).

The spelling of 774020220 in words is "seven hundred seventy-four million, twenty thousand, two hundred twenty".