247957472 has 24 divisors (see below), whose sum is σ = 557904816. Its totient is φ = 106267392.

The previous prime is 247957469. The next prime is 247957483. The reversal of 247957472 is 274759742.

It is a happy number.

It is a super-2 number, since 2×247957472² = 122965815841261568, which contains 22 as substring.

It is a congruent number.

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, 553253 + ... + 553700.

It is an arithmetic number, because the mean of its divisors is an integer number (23246034).

Almost surely, 2^247957472 is an apocalyptic number.

It is an amenable number.

247957472 is an abundant number, since it is smaller than the sum of its proper divisors (309947344).

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

247957472 is a wasteful number, since it uses less digits than its factorization.

247957472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106970 (or 1106962 counting only the distinct ones).

The product of its digits is 987840, while the sum is 47.

The square root of 247957472 is about 15746.6654247812. The cubic root of 247957472 is about 628.2402153509.

The spelling of 247957472 in words is "two hundred forty-seven million, nine hundred fifty-seven thousand, four hundred seventy-two".