774057378 has 16 divisors (see below), whose sum is σ = 1629594720. Its totient is φ = 244439136.

The previous prime is 774057373. The next prime is 774057439. The reversal of 774057378 is 873750477.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (774057371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3394875 + ... + 3395102.

It is an arithmetic number, because the mean of its divisors is an integer number (101849670).

Almost surely, 2^774057378 is an apocalyptic number.

774057378 is an abundant number, since it is smaller than the sum of its proper divisors (855537342).

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

774057378 is a wasteful number, since it uses less digits than its factorization.

774057378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790001.

The product of its (nonzero) digits is 1152480, while the sum is 48.

The square root of 774057378 is about 27821.8866721867. The cubic root of 774057378 is about 918.1727191970.

The spelling of 774057378 in words is "seven hundred seventy-four million, fifty-seven thousand, three hundred seventy-eight".