7491272 has 16 divisors (see below), whose sum is σ = 14076060. Its totient is φ = 3737664.

The previous prime is 7491269. The next prime is 7491287. The reversal of 7491272 is 2721947.

It can be written as a sum of positive squares in 2 ways, for example, as 7214596 + 276676 = 2686^2 + 526^2 .

It is a super-2 number, since 2×7491272² = 112238312355968, 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 3 ways as a sum of consecutive naturals, for example, 5438 + ... + 6674.

Almost surely, 2^7491272 is an apocalyptic number.

It is an amenable number.

7491272 is a deficient number, since it is larger than the sum of its proper divisors (6584788).

7491272 is a wasteful number, since it uses less digits than its factorization.

7491272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1996 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 7491272 is about 2737.0188161575. The cubic root of 7491272 is about 195.6674215521.

The spelling of 7491272 in words is "seven million, four hundred ninety-one thousand, two hundred seventy-two".