774280 has 32 divisors (see below), whose sum is σ = 1877400. Its totient is φ = 285696.

The previous prime is 774239. The next prime is 774283. The reversal of 774280 is 82477.

It can be written as a sum of positive squares in 4 ways, for example, as 367236 + 407044 = 606^2 + 638^2 .

It is not an unprimeable number, because it can be changed into a prime (774283) by changing a digit.

774280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 1264.

2⁷⁷⁴²⁸⁰ is an apocalyptic number.

It is an amenable number.

774280 is an abundant number, since it is smaller than the sum of its proper divisors (1103120).

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

774280 is a wasteful number, since it uses less digits than its factorization.

774280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 774280 is about 879.9318155403. The cubic root of 774280 is about 91.8260734143.

The spelling of 774280 in words is "seven hundred seventy-four thousand, two hundred eighty".