256240410 has 16 divisors (see below), whose sum is σ = 614977056. Its totient is φ = 68330768.

The previous prime is 256240393. The next prime is 256240417. The reversal of 256240410 is 14042652.

It is not an unprimeable number, because it can be changed into a prime (256240417) 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, 4270644 + ... + 4270703.

It is an arithmetic number, because the mean of its divisors is an integer number (38436066).

Almost surely, 2^256240410 is an apocalyptic number.

256240410 is an abundant number, since it is smaller than the sum of its proper divisors (358736646).

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

256240410 is a wasteful number, since it uses less digits than its factorization.

256240410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541357.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 256240410 is about 16007.5110495042. The cubic root of 256240410 is about 635.1591227076.

The spelling of 256240410 in words is "two hundred fifty-six million, two hundred forty thousand, four hundred ten".