52884440 has 64 divisors (see below), whose sum is σ = 138067200. Its totient is φ = 17854848.

The previous prime is 52884439. The next prime is 52884457. The reversal of 52884440 is 4448825.

It is a super-2 number, since 2×52884440² = 5593527988227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 52884440.

It is a congruent number.

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, 17351 + ... + 20169.

It is an arithmetic number, because the mean of its divisors is an integer number (2157300).

Almost surely, 2^52884440 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 52884440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69033600).

52884440 is an abundant number, since it is smaller than the sum of its proper divisors (85182760).

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

52884440 is a wasteful number, since it uses less digits than its factorization.

52884440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 52884440 is about 7272.1688649261. The cubic root of 52884440 is about 375.3553727505.

The spelling of 52884440 in words is "fifty-two million, eight hundred eighty-four thousand, four hundred forty".