1230440453 has 8 divisors (see below), whose sum is σ = 1400659776. Its totient is φ = 1069948000.

The previous prime is 1230440411. The next prime is 1230440459. The reversal of 1230440453 is 3540440321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1230440453 - 2²⁸ = 962004997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230440459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431448 + ... + 2431953.

It is an arithmetic number, because the mean of its divisors is an integer number (175082472).

Almost surely, 2^1230440453 is an apocalyptic number.

It is an amenable number.

1230440453 is a deficient number, since it is larger than the sum of its proper divisors (170219323).

1230440453 is a wasteful number, since it uses less digits than its factorization.

1230440453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863435.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1230440453 is about 35077.6346551474. The cubic root of 1230440453 is about 1071.5691458974.

Adding to 1230440453 its reverse (3540440321), we get a palindrome (4770880774).

The spelling of 1230440453 in words is "one billion, two hundred thirty million, four hundred forty thousand, four hundred fifty-three".