73491272 has 16 divisors (see below), whose sum is σ = 145902060. Its totient is φ = 34584064.

The previous prime is 73491269. The next prime is 73491283. The reversal of 73491272 is 27219437.

It can be written as a sum of positive squares in 2 ways, for example, as 73170916 + 320356 = 8554^2 + 566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270053 + ... + 270324.

Almost surely, 2^73491272 is an apocalyptic number.

It is an amenable number.

73491272 is a deficient number, since it is larger than the sum of its proper divisors (72410788).

73491272 is a wasteful number, since it uses less digits than its factorization.

73491272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540400 (or 540396 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 73491272 is about 8572.7050573317. The cubic root of 73491272 is about 418.8693550915.

The spelling of 73491272 in words is "seventy-three million, four hundred ninety-one thousand, two hundred seventy-two".