10256458 has 4 divisors (see below), whose sum is σ = 15384690. Its totient is φ = 5128228.

The previous prime is 10256453. The next prime is 10256461. The reversal of 10256458 is 85465201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7524049 + 2732409 = 2743^2 + 1653^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (10256453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564113 + ... + 2564116.

Almost surely, 2^10256458 is an apocalyptic number.

10256458 is a deficient number, since it is larger than the sum of its proper divisors (5128232).

10256458 is an equidigital number, since it uses as much as digits as its factorization.

10256458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128231.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 10256458 is about 3202.5705300586. The cubic root of 10256458 is about 217.2696852984.

The spelling of 10256458 in words is "ten million, two hundred fifty-six thousand, four hundred fifty-eight".