452244240 has 240 divisors, whose sum is σ = 1765410816. Its totient is φ = 101606400.

The previous prime is 452244209. The next prime is 452244253. The reversal of 452244240 is 42442254.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×452244240² = 409049705226355200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 306705 + ... + 308175.

Almost surely, 2^452244240 is an apocalyptic number.

452244240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 452244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882705408).

452244240 is an abundant number, since it is smaller than the sum of its proper divisors (1313166576).

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

452244240 is a wasteful number, since it uses less digits than its factorization.

452244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 452244240 is about 21266.0348913473. The cubic root of 452244240 is about 767.5812332895.

Adding to 452244240 its reverse (42442254), we get a palindrome (494686494).

The spelling of 452244240 in words is "four hundred fifty-two million, two hundred forty-four thousand, two hundred forty".