52437840 has 240 divisors, whose sum is σ = 204236928. Its totient is φ = 11063808.

The previous prime is 52437839. The next prime is 52437841. The reversal of 52437840 is 4873425.

It is an interprime number because it is at equal distance from previous prime (52437839) and next prime (52437841).

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52437841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4033674 + ... + 4033686.

Almost surely, 2^52437840 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 52437840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102118464).

52437840 is an abundant number, since it is smaller than the sum of its proper divisors (151799088).

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

52437840 is an equidigital number, since it uses as much as digits as its factorization.

52437840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 52437840 is about 7241.3976551492. The cubic root of 52437840 is about 374.2957805834.

The spelling of 52437840 in words is "fifty-two million, four hundred thirty-seven thousand, eight hundred forty".