775423488 has 160 divisors (see below), whose sum is σ = 2419845120. Its totient is φ = 216023040.

The previous prime is 775423477. The next prime is 775423507. The reversal of 775423488 is 884324577.

It is a super-2 number, since 2×775423488² = 1202563171484172288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439953 + ... + 441711.

It is an arithmetic number, because the mean of its divisors is an integer number (15124032).

Almost surely, 2^775423488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775423488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209922560).

775423488 is an abundant number, since it is smaller than the sum of its proper divisors (1644421632).

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

775423488 is a wasteful number, since it uses less digits than its factorization.

775423488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828 (or 1812 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The square root of 775423488 is about 27846.4268443906. The cubic root of 775423488 is about 918.7125533166.

The spelling of 775423488 in words is "seven hundred seventy-five million, four hundred twenty-three thousand, four hundred eighty-eight".