774421438 has 8 divisors (see below), whose sum is σ = 1327579632. Its totient is φ = 331894896.

The previous prime is 774421421. The next prime is 774421471. The reversal of 774421438 is 834124477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 774421438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27657895 + ... + 27657922.

It is an arithmetic number, because the mean of its divisors is an integer number (165947454).

Almost surely, 2^774421438 is an apocalyptic number.

774421438 is a deficient number, since it is larger than the sum of its proper divisors (553158194).

774421438 is a wasteful number, since it uses less digits than its factorization.

774421438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55315826.

The product of its digits is 150528, while the sum is 40.

The square root of 774421438 is about 27828.4285937959. The cubic root of 774421438 is about 918.3166437423.

The spelling of 774421438 in words is "seven hundred seventy-four million, four hundred twenty-one thousand, four hundred thirty-eight".