774274140 has 60 divisors (see below), whose sum is σ = 2428931736. Its totient is φ = 206472672.

The previous prime is 774274091. The next prime is 774274141. The reversal of 774274140 is 41472477.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a junction number, because it is equal to n+sod(n) for n = 774274095 and 774274104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774274141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 237354 + ... + 240593.

Almost surely, 2^774274140 is an apocalyptic number.

It is an amenable number.

774274140 is an abundant number, since it is smaller than the sum of its proper divisors (1654657596).

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

774274140 is a wasteful number, since it uses less digits than its factorization.

774274140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477968 (or 477957 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 774274140 is about 27825.7819297140. The cubic root of 774274140 is about 918.2584175727.

The spelling of 774274140 in words is "seven hundred seventy-four million, two hundred seventy-four thousand, one hundred forty".