747970272 has 144 divisors (see below), whose sum is σ = 2438916480. Its totient is φ = 213002496.

The previous prime is 747970253. The next prime is 747970273. The reversal of 747970272 is 272079747.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747970273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1134679 + ... + 1135337.

It is an arithmetic number, because the mean of its divisors is an integer number (16936920).

Almost surely, 2^747970272 is an apocalyptic number.

747970272 is a gapful number since it is divisible by the number (72) 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 747970272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219458240).

747970272 is an abundant number, since it is smaller than the sum of its proper divisors (1690946208).

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

747970272 is a wasteful number, since it uses less digits than its factorization.

747970272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The square root of 747970272 is about 27349.0451752890. The cubic root of 747970272 is about 907.7399424732.

The spelling of 747970272 in words is "seven hundred forty-seven million, nine hundred seventy thousand, two hundred seventy-two".