452220540 has 24 divisors (see below), whose sum is σ = 1266217680. Its totient is φ = 120592128.

The previous prime is 452220533. The next prime is 452220563. The reversal of 452220540 is 45022254.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 452220540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3768445 + ... + 3768564.

It is an arithmetic number, because the mean of its divisors is an integer number (52759070).

Almost surely, 2^452220540 is an apocalyptic number.

It is an amenable number.

452220540 is an abundant number, since it is smaller than the sum of its proper divisors (813997140).

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

452220540 is a wasteful number, since it uses less digits than its factorization.

452220540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537021 (or 7537019 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 452220540 is about 21265.4776574616. The cubic root of 452220540 is about 767.5678246109.

Adding to 452220540 its reverse (45022254), we get a palindrome (497242794).

The spelling of 452220540 in words is "four hundred fifty-two million, two hundred twenty thousand, five hundred forty".