1453338493 has 4 divisors (see below), whose sum is σ = 1480760028. Its totient is φ = 1425916960.

The previous prime is 1453338433. The next prime is 1453338511. The reversal of 1453338493 is 3948333541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 799871524 + 653466969 = 28282^2 + 25563^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453338493 - 2²⁵ = 1419784061 is a prime.

It is a super-2 number, since 2×1453338493² = 4224385550471022098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453338433) 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 3 ways as a sum of consecutive naturals, for example, 13710688 + ... + 13710793.

It is an arithmetic number, because the mean of its divisors is an integer number (370190007).

Almost surely, 2^1453338493 is an apocalyptic number.

It is an amenable number.

1453338493 is a deficient number, since it is larger than the sum of its proper divisors (27421535).

1453338493 is an equidigital number, since it uses as much as digits as its factorization.

1453338493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27421534.

The product of its digits is 466560, while the sum is 43.

The square root of 1453338493 is about 38122.6768865986. The cubic root of 1453338493 is about 1132.7191915902.

The spelling of 1453338493 in words is "one billion, four hundred fifty-three million, three hundred thirty-eight thousand, four hundred ninety-three".