247944672 has 48 divisors (see below), whose sum is σ = 723174480. Its totient is φ = 82647936.

The previous prime is 247944649. The next prime is 247944673. The reversal of 247944672 is 276449742.

247944672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×247944672² = 122953120746375168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247944673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142623 + ... + 144350.

It is an arithmetic number, because the mean of its divisors is an integer number (15066135).

Almost surely, 2^247944672 is an apocalyptic number.

It is an amenable number.

247944672 is an abundant number, since it is smaller than the sum of its proper divisors (475229808).

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

247944672 is a wasteful number, since it uses less digits than its factorization.

247944672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286992 (or 286978 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 247944672 is about 15746.2589842794. The cubic root of 247944672 is about 628.2294048773.

The spelling of 247944672 in words is "two hundred forty-seven million, nine hundred forty-four thousand, six hundred seventy-two".