774738842 has 16 divisors (see below), whose sum is σ = 1184936040. Its totient is φ = 379771392.

The previous prime is 774738821. The next prime is 774738901. The reversal of 774738842 is 248837477.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 600789121 + 173949721 = 24511^2 + 13189^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223958 + ... + 227390.

Almost surely, 2^774738842 is an apocalyptic number.

774738842 is a deficient number, since it is larger than the sum of its proper divisors (410197198).

774738842 is a wasteful number, since it uses less digits than its factorization.

774738842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617.

The product of its digits is 2107392, while the sum is 50.

The square root of 774738842 is about 27834.1308827849. The cubic root of 774738842 is about 918.4420868792.

The spelling of 774738842 in words is "seven hundred seventy-four million, seven hundred thirty-eight thousand, eight hundred forty-two".