775320000 has 560 divisors, whose sum is σ = 3199375872. Its totient is φ = 161280000.

The previous prime is 775319927. The next prime is 775320031. The reversal of 775320000 is 23577.

It is a tau number, because it is divible by the number of its divisors (560).

It is a super-2 number, since 2×775320000² = 1202242204800000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10919965 + ... + 10920035.

Almost surely, 2^775320000 is an apocalyptic number.

775320000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1599687936).

775320000 is an abundant number, since it is smaller than the sum of its proper divisors (2424055872).

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

775320000 is a wasteful number, since it uses less digits than its factorization.

775320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 775320000 is about 27844.5685906605. The cubic root of 775320000 is about 918.6716810466.

Adding to 775320000 its reverse (23577), we get a palindrome (775343577).

The spelling of 775320000 in words is "seven hundred seventy-five million, three hundred twenty thousand".