774761420 has 48 divisors (see below), whose sum is σ = 1698223968. Its totient is φ = 296624640.

The previous prime is 774761411. The next prime is 774761437. The reversal of 774761420 is 24167477.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34547 + ... + 52373.

It is an arithmetic number, because the mean of its divisors is an integer number (35379666).

Almost surely, 2^774761420 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 774761420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849111984).

774761420 is an abundant number, since it is smaller than the sum of its proper divisors (923462548).

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

774761420 is a wasteful number, since it uses less digits than its factorization.

774761420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17930 (or 17928 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 774761420 is about 27834.5364610227. The cubic root of 774761420 is about 918.4510087605.

The spelling of 774761420 in words is "seven hundred seventy-four million, seven hundred sixty-one thousand, four hundred twenty".