7491472 has 30 divisors (see below), whose sum is σ = 15330678. Its totient is φ = 3545856.

The previous prime is 7491469. The next prime is 7491493. The reversal of 7491472 is 2741947.

It can be written as a sum of positive squares in only one way, i.e., 7485696 + 5776 = 2736^2 + 76^2 .

It is a super-2 number, since 2×7491472² = 112244305453568, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 5128 + ... + 6424.

Almost surely, 2^7491472 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 7491472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7665339).

7491472 is an abundant number, since it is smaller than the sum of its proper divisors (7839206).

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

7491472 is a wasteful number, since it uses less digits than its factorization.

7491472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1318 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 7491472 is about 2737.0553520161. The cubic root of 7491472 is about 195.6691628289.

The spelling of 7491472 in words is "seven million, four hundred ninety-one thousand, four hundred seventy-two".