52440890 has 16 divisors (see below), whose sum is σ = 94576032. Its totient is φ = 20935824.

The previous prime is 52440889. The next prime is 52440901. The reversal of 52440890 is 9804425.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (5911002).

Almost surely, 2^52440890 is an apocalyptic number.

52440890 is a deficient number, since it is larger than the sum of its proper divisors (42135142).

52440890 is a wasteful number, since it uses less digits than its factorization.

52440890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10141.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 52440890 is about 7241.6082467916. The cubic root of 52440890 is about 374.3030373023.

It can be divided in two parts, 524 and 40890, that added together give a palindrome (41414).

The spelling of 52440890 in words is "fifty-two million, four hundred forty thousand, eight hundred ninety".