452781642 has 16 divisors (see below), whose sum is σ = 909323712. Its totient is φ = 150300480.

The previous prime is 452781631. The next prime is 452781643. The reversal of 452781642 is 246187254.

It is a super-2 number, since 2×452781642² = 410022430664432328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 452781642.

It is not an unprimeable number, because it can be changed into a prime (452781643) 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, 155118 + ... + 158009.

It is an arithmetic number, because the mean of its divisors is an integer number (56832732).

Almost surely, 2^452781642 is an apocalyptic number.

452781642 is an abundant number, since it is smaller than the sum of its proper divisors (456542070).

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

452781642 is a wasteful number, since it uses less digits than its factorization.

452781642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313373.

The product of its digits is 107520, while the sum is 39.

The square root of 452781642 is about 21278.6663585855. Note that the first 3 decimals coincide. The cubic root of 452781642 is about 767.8851519615.

The spelling of 452781642 in words is "four hundred fifty-two million, seven hundred eighty-one thousand, six hundred forty-two".