747574272 has 110 divisors (see below), whose sum is σ = 2232650618. Its totient is φ = 249163776.

The previous prime is 747574271. The next prime is 747574283. The reversal of 747574272 is 272475747.

747574272 is a `hidden beast` number, since 7 + 4 + 7 + 574 + 2 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 627803136 + 119771136 = 25056^2 + 10944^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747574271) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 78438 + ... + 87450.

Almost surely, 2^747574272 is an apocalyptic number.

747574272 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 747574272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1116325309).

747574272 is an abundant number, since it is smaller than the sum of its proper divisors (1485076346).

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

747574272 is an equidigital number, since it uses as much as digits as its factorization.

747574272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9045 (or 9018 counting only the distinct ones).

The product of its digits is 768320, while the sum is 45.

The square root of 747574272 is about 27341.8044759303. The cubic root of 747574272 is about 907.5797184256.

The spelling of 747574272 in words is "seven hundred forty-seven million, five hundred seventy-four thousand, two hundred seventy-two".