52789440 has 112 divisors (see below), whose sum is σ = 182880000. Its totient is φ = 12794880.

The previous prime is 52789421. The next prime is 52789481. The reversal of 52789440 is 4498725.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8061 + ... + 13059.

Almost surely, 2^52789440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52789440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91440000).

52789440 is an abundant number, since it is smaller than the sum of its proper divisors (130090560).

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

52789440 is a wasteful number, since it uses less digits than its factorization.

52789440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 5020 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 52789440 is about 7265.6341774136. The cubic root of 52789440 is about 375.1304790398.

The spelling of 52789440 in words is "fifty-two million, seven hundred eighty-nine thousand, four hundred forty".