52409028 has 120 divisors (see below), whose sum is σ = 152464032. Its totient is φ = 13961472.

The previous prime is 52409017. The next prime is 52409041. The reversal of 52409028 is 82090425.

It is a junction number, because it is equal to n+sod(n) for n = 52408986 and 52409004.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 489751 + ... + 489857.

Almost surely, 2^52409028 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 52409028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76232016).

52409028 is an abundant number, since it is smaller than the sum of its proper divisors (100055004).

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

52409028 is a wasteful number, since it uses less digits than its factorization.

52409028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 52409028 is about 7239.4079868453. The cubic root of 52409028 is about 374.2272156834.

The spelling of 52409028 in words is "fifty-two million, four hundred nine thousand, twenty-eight".