452543386 has 4 divisors (see below), whose sum is σ = 678815082. Its totient is φ = 226271692.

The previous prime is 452543381. The next prime is 452543389. The reversal of 452543386 is 683345254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 683345254 = 2 ⋅341672627.

It can be written as a sum of positive squares in only one way, i.e., 403809025 + 48734361 = 20095^2 + 6981^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (452543381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113135845 + ... + 113135848.

Almost surely, 2^452543386 is an apocalyptic number.

452543386 is a deficient number, since it is larger than the sum of its proper divisors (226271696).

452543386 is a wasteful number, since it uses less digits than its factorization.

452543386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226271695.

The product of its digits is 345600, while the sum is 40.

The square root of 452543386 is about 21273.0671507425. The cubic root of 452543386 is about 767.7504399742.

It can be divided in two parts, 452543 and 386, that added together give a square (452929 = 673²).

The spelling of 452543386 in words is "four hundred fifty-two million, five hundred forty-three thousand, three hundred eighty-six".