247472132 has 24 divisors (see below), whose sum is σ = 459137280. Its totient is φ = 116506080.

The previous prime is 247472129. The next prime is 247472149. The reversal of 247472132 is 231274742.

It is a super-2 number, since 2×247472132² = 122484912233250848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22382 + ... + 31557.

It is an arithmetic number, because the mean of its divisors is an integer number (19130720).

Almost surely, 2^247472132 is an apocalyptic number.

It is an amenable number.

247472132 is a deficient number, since it is larger than the sum of its proper divisors (211665148).

247472132 is a wasteful number, since it uses less digits than its factorization.

247472132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54011 (or 54009 counting only the distinct ones).

The product of its digits is 18816, while the sum is 32.

The square root of 247472132 is about 15731.2469944375. The cubic root of 247472132 is about 627.8300519211.

The spelling of 247472132 in words is "two hundred forty-seven million, four hundred seventy-two thousand, one hundred thirty-two".