4257634 has 12 divisors (see below), whose sum is σ = 6741414. Its totient is φ = 2016432.

The previous prime is 4257613. The next prime is 4257641. The reversal of 4257634 is 4367524.

It can be written as a sum of positive squares in only one way, i.e., 2732409 + 1525225 = 1653^2 + 1235^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4257596 and 4257605.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2227 + ... + 3670.

Almost surely, 2^4257634 is an apocalyptic number.

4257634 is a deficient number, since it is larger than the sum of its proper divisors (2483780).

4257634 is a wasteful number, since it uses less digits than its factorization.

4257634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937 (or 5918 counting only the distinct ones).

The product of its digits is 20160, while the sum is 31.

The square root of 4257634 is about 2063.4034990762. The cubic root of 4257634 is about 162.0775171367.

The spelling of 4257634 in words is "four million, two hundred fifty-seven thousand, six hundred thirty-four".