452188438 has 32 divisors (see below), whose sum is σ = 739569600. Its totient is φ = 206119296.

The previous prime is 452188409. The next prime is 452188439. The reversal of 452188438 is 834881254.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 452188394 and 452188403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452188439) 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 15 ways as a sum of consecutive naturals, for example, 1029823 + ... + 1030261.

It is an arithmetic number, because the mean of its divisors is an integer number (23111550).

Almost surely, 2^452188438 is an apocalyptic number.

452188438 is a deficient number, since it is larger than the sum of its proper divisors (287381162).

452188438 is a wasteful number, since it uses less digits than its factorization.

452188438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its digits is 245760, while the sum is 43.

The square root of 452188438 is about 21264.7228526496. The cubic root of 452188438 is about 767.5496616106.

The spelling of 452188438 in words is "four hundred fifty-two million, one hundred eighty-eight thousand, four hundred thirty-eight".