247702272 has 144 divisors (see below), whose sum is σ = 708368640. Its totient is φ = 76640256.

The previous prime is 247702241. The next prime is 247702277. The reversal of 247702272 is 272207742.

It is a super-2 number, since 2×247702272² = 122712831107923968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247702277) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 653379 + ... + 653757.

Almost surely, 2^247702272 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 247702272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354184320).

247702272 is an abundant number, since it is smaller than the sum of its proper divisors (460666368).

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

247702272 is a wasteful number, since it uses less digits than its factorization.

247702272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 247702272 is about 15738.5600357847. The cubic root of 247702272 is about 628.0246112577.

The spelling of 247702272 in words is "two hundred forty-seven million, seven hundred two thousand, two hundred seventy-two".