4020345453 has 16 divisors (see below), whose sum is σ = 5858873856. Its totient is φ = 2441195520.

The previous prime is 4020345403. The next prime is 4020345457. The reversal of 4020345453 is 3545430204.

It is not a de Polignac number, because 4020345453 - 2⁶ = 4020345389 is a prime.

It is a super-2 number, since 2×4020345453² = 32326355122915550418, 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 4020345453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020345457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1269876 + ... + 1273037.

It is an arithmetic number, because the mean of its divisors is an integer number (366179616).

Almost surely, 2^4020345453 is an apocalyptic number.

It is an amenable number.

4020345453 is a deficient number, since it is larger than the sum of its proper divisors (1838528403).

4020345453 is a wasteful number, since it uses less digits than its factorization.

4020345453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542964.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 4020345453 is about 63406.1941217102. The cubic root of 4020345453 is about 1590.0878678548.

Adding to 4020345453 its reverse (3545430204), we get a palindrome (7565775657).

The spelling of 4020345453 in words is "four billion, twenty million, three hundred forty-five thousand, four hundred fifty-three".