52382440 has 128 divisors (see below), whose sum is σ = 139968000. Its totient is φ = 17428480.

The previous prime is 52382437. The next prime is 52382453. The reversal of 52382440 is 4428325.

It is a junction number, because it is equal to n+sod(n) for n = 52382399 and 52382408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351486 + ... + 351634.

It is an arithmetic number, because the mean of its divisors is an integer number (1093500).

Almost surely, 2^52382440 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 52382440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69984000).

52382440 is an abundant number, since it is smaller than the sum of its proper divisors (87585560).

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

52382440 is a wasteful number, since it uses less digits than its factorization.

52382440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 52382440 is about 7237.5714158825. The cubic root of 52382440 is about 374.1639210142.

The spelling of 52382440 in words is "fifty-two million, three hundred eighty-two thousand, four hundred forty".