10040257 has 4 divisors (see below), whose sum is σ = 10046596. Its totient is φ = 10033920.

The previous prime is 10040237. The next prime is 10040269. The reversal of 10040257 is 75204001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75204001 = 487 ⋅154423.

It can be written as a sum of positive squares in 2 ways, for example, as 3568321 + 6471936 = 1889^2 + 2544^2 .

It is a cyclic number.

It is not a de Polignac number, because 10040257 - 2¹¹ = 10038209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10040237) 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, 1513 + ... + 4729.

It is an arithmetic number, because the mean of its divisors is an integer number (2511649).

Almost surely, 2^10040257 is an apocalyptic number.

It is an amenable number.

10040257 is a deficient number, since it is larger than the sum of its proper divisors (6339).

10040257 is an equidigital number, since it uses as much as digits as its factorization.

10040257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 10040257 is about 3168.6364575319. The cubic root of 10040257 is about 215.7321855115.

Adding to 10040257 its reverse (75204001), we get a palindrome (85244258).

The spelling of 10040257 in words is "ten million, forty thousand, two hundred fifty-seven".