774370620 has 72 divisors (see below), whose sum is σ = 2363424336. Its totient is φ = 205224192.

The previous prime is 774370609. The next prime is 774370643. The reversal of 774370620 is 26073477.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16144 + ... + 42536.

It is an arithmetic number, because the mean of its divisors is an integer number (32825338).

Almost surely, 2^774370620 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 774370620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181712168).

774370620 is an abundant number, since it is smaller than the sum of its proper divisors (1589053716).

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

774370620 is a wasteful number, since it uses less digits than its factorization.

774370620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26571 (or 26566 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 774370620 is about 27827.5155197154. The cubic root of 774370620 is about 918.2965564730.

The spelling of 774370620 in words is "seven hundred seventy-four million, three hundred seventy thousand, six hundred twenty".