755321280 has 168 divisors, whose sum is σ = 2789852688. Its totient is φ = 172634112.

The previous prime is 755321263. The next prime is 755321317. The reversal of 755321280 is 82123557.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39012 + ... + 55068.

It is an arithmetic number, because the mean of its divisors is an integer number (16606266).

Almost surely, 2^755321280 is an apocalyptic number.

755321280 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 755321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394926344).

755321280 is an abundant number, since it is smaller than the sum of its proper divisors (2034531408).

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

755321280 is a wasteful number, since it uses less digits than its factorization.

755321280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16091 (or 16074 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 755321280 is about 27483.1089944351. The cubic root of 755321280 is about 910.7039917285.

The spelling of 755321280 in words is "seven hundred fifty-five million, three hundred twenty-one thousand, two hundred eighty".