452815388 has 24 divisors (see below), whose sum is σ = 818912640. Its totient is φ = 218856960.

The previous prime is 452815387. The next prime is 452815397. The reversal of 452815388 is 883518254.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452815387) by changing a digit.

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, 158420 + ... + 161252.

It is an arithmetic number, because the mean of its divisors is an integer number (34121360).

Almost surely, 2^452815388 is an apocalyptic number.

It is an amenable number.

452815388 is a deficient number, since it is larger than the sum of its proper divisors (366097252).

452815388 is a wasteful number, since it uses less digits than its factorization.

452815388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157 (or 4155 counting only the distinct ones).

The product of its digits is 307200, while the sum is 44.

The square root of 452815388 is about 21279.4592976419. The cubic root of 452815388 is about 767.9042284185.

The spelling of 452815388 in words is "four hundred fifty-two million, eight hundred fifteen thousand, three hundred eighty-eight".