39040539 has 4 divisors (see below), whose sum is σ = 52054056. Its totient is φ = 26027024.

The previous prime is 39040537. The next prime is 39040541. The reversal of 39040539 is 93504093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93504093 = 3 ⋅31168031.

It is an interprime number because it is at equal distance from previous prime (39040537) and next prime (39040541).

It is a cyclic number.

It is not a de Polignac number, because 39040539 - 2¹ = 39040537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39040537) 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, 6506754 + ... + 6506759.

It is an arithmetic number, because the mean of its divisors is an integer number (13013514).

Almost surely, 2^39040539 is an apocalyptic number.

39040539 is a deficient number, since it is larger than the sum of its proper divisors (13013517).

39040539 is a wasteful number, since it uses less digits than its factorization.

39040539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13013516.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 39040539 is about 6248.2428730004. The cubic root of 39040539 is about 339.2386047411.

The spelling of 39040539 in words is "thirty-nine million, forty thousand, five hundred thirty-nine".