747225680 has 40 divisors (see below), whose sum is σ = 1741154184. Its totient is φ = 298227200.

The previous prime is 747225671. The next prime is 747225683. The reversal of 747225680 is 86522747.

It can be written as a sum of positive squares in 4 ways, for example, as 8690704 + 738534976 = 2948^2 + 27176^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747225683) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26750 + ... + 47010.

Almost surely, 2^747225680 is an apocalyptic number.

It is an amenable number.

747225680 is an abundant number, since it is smaller than the sum of its proper divisors (993928504).

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

747225680 is a wasteful number, since it uses less digits than its factorization.

747225680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20735 (or 20729 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 747225680 is about 27335.4290253510. The cubic root of 747225680 is about 907.4386291146.

The spelling of 747225680 in words is "seven hundred forty-seven million, two hundred twenty-five thousand, six hundred eighty".