452404240 has 40 divisors (see below), whose sum is σ = 1054729368. Its totient is φ = 180464640.

The previous prime is 452404229. The next prime is 452404241. The reversal of 452404240 is 42404254.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59413264 + 392990976 = 7708^2 + 19824^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (452404241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22260 + ... + 37420.

Almost surely, 2^452404240 is an apocalyptic number.

452404240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

452404240 is an abundant number, since it is smaller than the sum of its proper divisors (602325128).

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

452404240 is a wasteful number, since it uses less digits than its factorization.

452404240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15547 (or 15541 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 452404240 is about 21269.7964259181. The cubic root of 452404240 is about 767.6717437599.

Adding to 452404240 its reverse (42404254), we get a palindrome (494808494).

The spelling of 452404240 in words is "four hundred fifty-two million, four hundred four thousand, two hundred forty".