52443400 has 24 divisors (see below), whose sum is σ = 121931370. Its totient is φ = 20977280.

The previous prime is 52443371. The next prime is 52443409. The reversal of 52443400 is 434425.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 49196196 + 3247204 = 7014^2 + 1802^2 .

It is not an unprimeable number, because it can be changed into a prime (52443409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130909 + ... + 131308.

Almost surely, 2^52443400 is an apocalyptic number.

52443400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52443400 is an abundant number, since it is smaller than the sum of its proper divisors (69487970).

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

52443400 is a wasteful number, since it uses less digits than its factorization.

52443400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262233 (or 262224 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 52443400 is about 7241.7815487627. The cubic root of 52443400 is about 374.3090090141.

Adding to 52443400 its reverse (434425), we get a palindrome (52877825).

The spelling of 52443400 in words is "fifty-two million, four hundred forty-three thousand, four hundred".