4040537 has 4 divisors (see below), whose sum is σ = 4058880. Its totient is φ = 4022196.

The previous prime is 4040527. The next prime is 4040549. The reversal of 4040537 is 7350404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4040537 - 2⁶ = 4040473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8837 + ... + 9282.

It is an arithmetic number, because the mean of its divisors is an integer number (1014720).

Almost surely, 2^4040537 is an apocalyptic number.

It is an amenable number.

4040537 is a deficient number, since it is larger than the sum of its proper divisors (18343).

4040537 is a wasteful number, since it uses less digits than its factorization.

4040537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18342.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 4040537 is about 2010.1087035282. The cubic root of 4040537 is about 159.2745411766.

The spelling of 4040537 in words is "four million, forty thousand, five hundred thirty-seven".