52040642 has 8 divisors (see below), whose sum is σ = 79226256. Its totient is φ = 25631892.

The previous prime is 52040623. The next prime is 52040671. The reversal of 52040642 is 24604025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194048 + ... + 194315.

It is an arithmetic number, because the mean of its divisors is an integer number (9903282).

Almost surely, 2^52040642 is an apocalyptic number.

52040642 is a deficient number, since it is larger than the sum of its proper divisors (27185614).

52040642 is a wasteful number, since it uses less digits than its factorization.

52040642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388432.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 52040642 is about 7213.9200161909. The cubic root of 52040642 is about 373.3483318450.

Adding to 52040642 its reverse (24604025), we get a palindrome (76644667).

The spelling of 52040642 in words is "fifty-two million, forty thousand, six hundred forty-two".