52128942 has 8 divisors (see below), whose sum is σ = 104257896. Its totient is φ = 17376312.

The previous prime is 52128941. The next prime is 52128959. The reversal of 52128942 is 24982125.

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

52128942 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52128941) 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, 4344073 + ... + 4344084.

It is an arithmetic number, because the mean of its divisors is an integer number (13032237).

Almost surely, 2^52128942 is an apocalyptic number.

52128942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52128942 is a wasteful number, since it uses less digits than its factorization.

52128942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8688162.

The product of its digits is 11520, while the sum is 33.

The square root of 52128942 is about 7220.0375345285. The cubic root of 52128942 is about 373.5593722203.

The spelling of 52128942 in words is "fifty-two million, one hundred twenty-eight thousand, nine hundred forty-two".