775268420 has 24 divisors (see below), whose sum is σ = 1635373824. Its totient is φ = 308714976.

The previous prime is 775268401. The next prime is 775268443. The reversal of 775268420 is 24862577.

It is a super-2 number, since 2×775268420² = 1202082246098592800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82454 + ... + 91373.

It is an arithmetic number, because the mean of its divisors is an integer number (68140576).

Almost surely, 2^775268420 is an apocalyptic number.

It is an amenable number.

775268420 is an abundant number, since it is smaller than the sum of its proper divisors (860105404).

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

775268420 is a wasteful number, since it uses less digits than its factorization.

775268420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174059 (or 174057 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 775268420 is about 27843.6423623060. The cubic root of 775268420 is about 918.6513083247.

The spelling of 775268420 in words is "seven hundred seventy-five million, two hundred sixty-eight thousand, four hundred twenty".