452312540 has 48 divisors (see below), whose sum is σ = 1015211232. Its totient is φ = 168677376.

The previous prime is 452312527. The next prime is 452312543. The reversal of 452312540 is 45213254.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452312543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30164 + ... + 42596.

It is an arithmetic number, because the mean of its divisors is an integer number (21150234).

Almost surely, 2^452312540 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 452312540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507605616).

452312540 is an abundant number, since it is smaller than the sum of its proper divisors (562898692).

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

452312540 is a wasteful number, since it uses less digits than its factorization.

452312540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12566 (or 12564 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 452312540 is about 21267.6406777997. The cubic root of 452312540 is about 767.6198725575.

Adding to 452312540 its reverse (45213254), we get a palindrome (497525794).

The spelling of 452312540 in words is "four hundred fifty-two million, three hundred twelve thousand, five hundred forty".