4003538 has 16 divisors (see below), whose sum is σ = 7487424. Its totient is φ = 1559760.

The previous prime is 4003529. The next prime is 4003577. The reversal of 4003538 is 8353004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12845 + ... + 13152.

It is an arithmetic number, because the mean of its divisors is an integer number (467964).

Almost surely, 2^4003538 is an apocalyptic number.

4003538 is a deficient number, since it is larger than the sum of its proper divisors (3483886).

4003538 is a wasteful number, since it uses less digits than its factorization.

4003538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26017.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 4003538 is about 2000.8843045014. The cubic root of 4003538 is about 158.7868932792.

The spelling of 4003538 in words is "four million, three thousand, five hundred thirty-eight".