240172452 has 144 divisors (see below), whose sum is σ = 689183040. Its totient is φ = 72690048.

The previous prime is 240172451. The next prime is 240172459. The reversal of 240172452 is 254271042.

240172452 is a `hidden beast` number, since 2 + 40 + 172 + 452 = 666.

240172452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (240172451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1048674 + ... + 1048902.

Almost surely, 2^240172452 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 240172452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344591520).

240172452 is an abundant number, since it is smaller than the sum of its proper divisors (449010588).

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

240172452 is a wasteful number, since it uses less digits than its factorization.

240172452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 240172452 is about 15497.4982497176. The cubic root of 240172452 is about 621.5953123482.

The spelling of 240172452 in words is "two hundred forty million, one hundred seventy-two thousand, four hundred fifty-two".