52449930 has 160 divisors (see below), whose sum is σ = 161363664. Its totient is φ = 12109824.

The previous prime is 52449907. The next prime is 52449949. The reversal of 52449930 is 3994425.

52449930 is a `hidden beast` number, since 524 + 49 + 93 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 34327881 + 18122049 = 5859^2 + 4257^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 178864 + ... + 179156.

Almost surely, 2^52449930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52449930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80681832).

52449930 is an abundant number, since it is smaller than the sum of its proper divisors (108913734).

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

52449930 is a wasteful number, since it uses less digits than its factorization.

52449930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 52449930 is about 7242.2323906376. The cubic root of 52449930 is about 374.3245440886.

The spelling of 52449930 in words is "fifty-two million, four hundred forty-nine thousand, nine hundred thirty".