52840458 has 48 divisors (see below), whose sum is σ = 129084480. Its totient is φ = 16010280.

The previous prime is 52840427. The next prime is 52840481. The reversal of 52840458 is 85404825.

It is a super-2 number, since 2×52840458² = 5584228003299528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2491 + ... + 10577.

It is an arithmetic number, because the mean of its divisors is an integer number (2689260).

Almost surely, 2^52840458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52840458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64542240).

52840458 is an abundant number, since it is smaller than the sum of its proper divisors (76244022).

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

52840458 is a wasteful number, since it uses less digits than its factorization.

52840458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8120 (or 8103 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 52840458 is about 7269.1442412433. The cubic root of 52840458 is about 375.2512875745.

The spelling of 52840458 in words is "fifty-two million, eight hundred forty thousand, four hundred fifty-eight".