52444380 has 48 divisors (see below), whose sum is σ = 148627584. Its totient is φ = 13815360.

The previous prime is 52444361. The next prime is 52444397. The reversal of 52444380 is 8344425.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286 + ... + 10245.

It is an arithmetic number, because the mean of its divisors is an integer number (3096408).

Almost surely, 2^52444380 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 52444380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74313792).

52444380 is an abundant number, since it is smaller than the sum of its proper divisors (96183204).

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

52444380 is a wasteful number, since it uses less digits than its factorization.

52444380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10626 (or 10624 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 52444380 is about 7241.8492113548. The cubic root of 52444380 is about 374.3113405470.

The spelling of 52444380 in words is "fifty-two million, four hundred forty-four thousand, three hundred eighty".