755349780 has 96 divisors (see below), whose sum is σ = 2245985280. Its totient is φ = 189020160.

The previous prime is 755349757. The next prime is 755349781. The reversal of 755349780 is 87943557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755349781) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 428541 + ... + 430299.

It is an arithmetic number, because the mean of its divisors is an integer number (23395680).

Almost surely, 2^755349780 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 755349780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1122992640).

755349780 is an abundant number, since it is smaller than the sum of its proper divisors (1490635500).

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

755349780 is a wasteful number, since it uses less digits than its factorization.

755349780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209 (or 2207 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 48.

The square root of 755349780 is about 27483.6274898347. The cubic root of 755349780 is about 910.7154458995.

The spelling of 755349780 in words is "seven hundred fifty-five million, three hundred forty-nine thousand, seven hundred eighty".