247074256 has 60 divisors (see below), whose sum is σ = 566714596. Its totient is φ = 103656960.

The previous prime is 247074251. The next prime is 247074281. The reversal of 247074256 is 652470742.

247074256 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 161696656 + 85377600 = 12716^2 + 9240^2 .

It is a super-2 number, since 2×247074256² = 122091375955907072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247074251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20260 + ... + 30076.

Almost surely, 2^247074256 is an apocalyptic number.

247074256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247074256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283357298).

247074256 is an abundant number, since it is smaller than the sum of its proper divisors (319640340).

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

247074256 is a wasteful number, since it uses less digits than its factorization.

247074256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9860 (or 9843 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 247074256 is about 15718.5958660435. The cubic root of 247074256 is about 627.4934045856.

The spelling of 247074256 in words is "two hundred forty-seven million, seventy-four thousand, two hundred fifty-six".