775530448 has 120 divisors (see below), whose sum is σ = 2007594720. Its totient is φ = 286191360.

The previous prime is 775530407. The next prime is 775530451. The reversal of 775530448 is 844035577.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161490 + ... + 166222.

It is an arithmetic number, because the mean of its divisors is an integer number (16729956).

Almost surely, 2^775530448 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 775530448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1003797360).

775530448 is an abundant number, since it is smaller than the sum of its proper divisors (1232064272).

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

775530448 is a wasteful number, since it uses less digits than its factorization.

775530448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785 (or 4772 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The square root of 775530448 is about 27848.3473118244. The cubic root of 775530448 is about 918.7547930211.

It can be divided in two parts, 77 and 5530448, that multiplied together give a square (425844496 = 20636²).

The spelling of 775530448 in words is "seven hundred seventy-five million, five hundred thirty thousand, four hundred forty-eight".