4537538 has 16 divisors (see below), whose sum is σ = 7246584. Its totient is φ = 2123520.

The previous prime is 4537531. The next prime is 4537541. The reversal of 4537538 is 8357354.

It can be written as a sum of positive squares in 4 ways, for example, as 1857769 + 2679769 = 1363^2 + 1637^2 .

It is a super-2 number, since 2×4537538² = 41178502202888, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4537498 and 4537507.

It is not an unprimeable number, because it can be changed into a prime (4537531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10568 + ... + 10988.

Almost surely, 2^4537538 is an apocalyptic number.

4537538 is a deficient number, since it is larger than the sum of its proper divisors (2709046).

4537538 is a wasteful number, since it uses less digits than its factorization.

4537538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its digits is 50400, while the sum is 35.

The square root of 4537538 is about 2130.1497599934. The cubic root of 4537538 is about 165.5541575754.

The spelling of 4537538 in words is "four million, five hundred thirty-seven thousand, five hundred thirty-eight".