1453423203440 has 80 divisors (see below), whose sum is σ = 3639407229696. Its totient is φ = 536610355200.

The previous prime is 1453423203433. The next prime is 1453423203517. The reversal of 1453423203440 is 443023243541.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1453423203440² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1453423203440.

It is a congruent number.

It is an unprimeable number.

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, 17556545 + ... + 17639135.

Almost surely, 2^{1453423203440} is an apocalyptic number.

1453423203440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453423203440 is an abundant number, since it is smaller than the sum of its proper divisors (2185984026256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1453423203440 is a wasteful number, since it uses less digits than its factorization.

1453423203440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99538 (or 99532 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 1453423203440 its reverse (443023243541), we get a palindrome (1896446446981).

The spelling of 1453423203440 in words is "one trillion, four hundred fifty-three billion, four hundred twenty-three million, two hundred three thousand, four hundred forty".