10257742 has 8 divisors (see below), whose sum is σ = 16785432. Its totient is φ = 4662600.

The previous prime is 10257727. The next prime is 10257743. The reversal of 10257742 is 24775201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10257742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10257743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233109 + ... + 233152.

It is an arithmetic number, because the mean of its divisors is an integer number (2098179).

Almost surely, 2^10257742 is an apocalyptic number.

10257742 is a deficient number, since it is larger than the sum of its proper divisors (6527690).

10257742 is a wasteful number, since it uses less digits than its factorization.

10257742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466274.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 10257742 is about 3202.7709877542. The cubic root of 10257742 is about 217.2787515419.

It can be divided in two parts, 10 and 257742, that added together give a palindrome (257752).

The spelling of 10257742 in words is "ten million, two hundred fifty-seven thousand, seven hundred forty-two".