4157738 has 12 divisors (see below), whose sum is σ = 6753798. Its totient is φ = 1918800.

The previous prime is 4157731. The next prime is 4157749. The reversal of 4157738 is 8377514.

It can be written as a sum of positive squares in 3 ways, for example, as 1776889 + 2380849 = 1333^2 + 1543^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4157698 and 4157707.

It is not an unprimeable number, because it can be changed into a prime (4157731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5813 + ... + 6488.

Almost surely, 2^4157738 is an apocalyptic number.

4157738 is a deficient number, since it is larger than the sum of its proper divisors (2596060).

4157738 is a wasteful number, since it uses less digits than its factorization.

4157738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12329 (or 12316 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 4157738 is about 2039.0532116647. The cubic root of 4157738 is about 160.7998747967.

The spelling of 4157738 in words is "four million, one hundred fifty-seven thousand, seven hundred thirty-eight".