775804142 has 32 divisors (see below), whose sum is σ = 1214432352. Its totient is φ = 371464704.

The previous prime is 775804097. The next prime is 775804147. The reversal of 775804142 is 241408577.

It is a junction number, because it is equal to n+sod(n) for n = 775804096 and 775804105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775804147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 827498 + ... + 828434.

It is an arithmetic number, because the mean of its divisors is an integer number (37951011).

Almost surely, 2^775804142 is an apocalyptic number.

775804142 is a deficient number, since it is larger than the sum of its proper divisors (438628210).

775804142 is a wasteful number, since it uses less digits than its factorization.

775804142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 775804142 is about 27853.2608862948. The cubic root of 775804142 is about 918.8628601726.

The spelling of 775804142 in words is "seven hundred seventy-five million, eight hundred four thousand, one hundred forty-two".