415240256 has 14 divisors (see below), whose sum is σ = 823992510. Its totient is φ = 207620096.

The previous prime is 415240247. The next prime is 415240271. The reversal of 415240256 is 652042514.

It can be written as a sum of positive squares in only one way, i.e., 408686656 + 6553600 = 20216^2 + 2560^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244001 + ... + 3244128.

Almost surely, 2^415240256 is an apocalyptic number.

It is an amenable number.

415240256 is a deficient number, since it is larger than the sum of its proper divisors (408752254).

415240256 is an equidigital number, since it uses as much as digits as its factorization.

415240256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488141 (or 6488131 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 415240256 is about 20377.4447858410. Note that the first 3 decimals coincide. The cubic root of 415240256 is about 746.0475068395.

The spelling of 415240256 in words is "four hundred fifteen million, two hundred forty thousand, two hundred fifty-six".