747641472 has 128 divisors (see below), whose sum is σ = 2037960000. Its totient is φ = 242786304.

The previous prime is 747641467. The next prime is 747641501. The reversal of 747641472 is 274146747.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4176679 + ... + 4176857.

Almost surely, 2^747641472 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 747641472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018980000).

747641472 is an abundant number, since it is smaller than the sum of its proper divisors (1290318528).

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

747641472 is a wasteful number, since it uses less digits than its factorization.

747641472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 406 counting only the distinct ones).

The product of its digits is 263424, while the sum is 42.

The square root of 747641472 is about 27343.0333357512. The cubic root of 747641472 is about 907.6069119465.

The spelling of 747641472 in words is "seven hundred forty-seven million, six hundred forty-one thousand, four hundred seventy-two".