52194240 has 224 divisors, whose sum is σ = 210677760. Its totient is φ = 11916288.

The previous prime is 52194221. The next prime is 52194251. The reversal of 52194240 is 4249125.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 60049 + ... + 60911.

Almost surely, 2^52194240 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 52194240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105338880).

52194240 is an abundant number, since it is smaller than the sum of its proper divisors (158483520).

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

52194240 is a wasteful number, since it uses less digits than its factorization.

52194240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 52194240 is about 7224.5581179751. The cubic root of 52194240 is about 373.7152837036.

The spelling of 52194240 in words is "fifty-two million, one hundred ninety-four thousand, two hundred forty".