774140 has 12 divisors (see below), whose sum is σ = 1625736. Its totient is φ = 309648.

The previous prime is 774133. The next prime is 774143. The reversal of 774140 is 41477.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19334 + ... + 19373.

It is an arithmetic number, because the mean of its divisors is an integer number (135478).

2⁷⁷⁴¹⁴⁰ is an apocalyptic number.

It is an amenable number.

774140 is an abundant number, since it is smaller than the sum of its proper divisors (851596).

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

774140 is a wasteful number, since it uses less digits than its factorization.

774140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38716 (or 38714 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 774140 is about 879.8522603256. The cubic root of 774140 is about 91.8205386270.

It can be divided in two parts, 7 and 74140, that added together give a palindrome (74147).

The spelling of 774140 in words is "seven hundred seventy-four thousand, one hundred forty", and thus it is an iban number.