52439400 has 288 divisors, whose sum is σ = 199049760. Its totient is φ = 12752640.

The previous prime is 52439381. The next prime is 52439417. The reversal of 52439400 is 493425.

52439400 is nontrivially palindromic in base 14.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 631759 + ... + 631841.

It is an arithmetic number, because the mean of its divisors is an integer number (691145).

Almost surely, 2^52439400 is an apocalyptic number.

52439400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52439400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99524880).

52439400 is an abundant number, since it is smaller than the sum of its proper divisors (146610360).

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

52439400 is a wasteful number, since it uses less digits than its factorization.

52439400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 52439400 is about 7241.5053683609. The cubic root of 52439400 is about 374.2994922519.

The spelling of 52439400 in words is "fifty-two million, four hundred thirty-nine thousand, four hundred".