247485456 has 200 divisors, whose sum is σ = 777807360. Its totient is φ = 75672576.

The previous prime is 247485437. The next prime is 247485457. The reversal of 247485456 is 654584742.

It is a super-2 number, since 2×247485456² = 122498101863055872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247485457) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1035385 + ... + 1035623.

Almost surely, 2^247485456 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 247485456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388903680).

247485456 is an abundant number, since it is smaller than the sum of its proper divisors (530321904).

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

247485456 is a wasteful number, since it uses less digits than its factorization.

247485456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 308 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

The square root of 247485456 is about 15731.6704770981. The cubic root of 247485456 is about 627.8413192605.

The spelling of 247485456 in words is "two hundred forty-seven million, four hundred eighty-five thousand, four hundred fifty-six".