39240057 has 4 divisors (see below), whose sum is σ = 52320080. Its totient is φ = 26160036.

The previous prime is 39240053. The next prime is 39240077. The reversal of 39240057 is 75004293.

39240057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 39240057 - 2² = 39240053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39240053) 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 3 ways as a sum of consecutive naturals, for example, 6540007 + ... + 6540012.

It is an arithmetic number, because the mean of its divisors is an integer number (13080020).

Almost surely, 2^39240057 is an apocalyptic number.

It is an amenable number.

39240057 is a deficient number, since it is larger than the sum of its proper divisors (13080023).

39240057 is a wasteful number, since it uses less digits than its factorization.

39240057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13080022.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 39240057 is about 6264.1884550195. The cubic root of 39240057 is about 339.8155198752.

The spelling of 39240057 in words is "thirty-nine million, two hundred forty thousand, fifty-seven".