421453453 has 8 divisors (see below), whose sum is σ = 428955680. Its totient is φ = 413970480.

The previous prime is 421453423. The next prime is 421453489. The reversal of 421453453 is 354354124.

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

It is a cyclic number.

It is not a de Polignac number, because 421453453 - 2¹⁷ = 421322381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421453423) 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 7 ways as a sum of consecutive naturals, for example, 43618 + ... + 52396.

It is an arithmetic number, because the mean of its divisors is an integer number (53619460).

Almost surely, 2^421453453 is an apocalyptic number.

It is an amenable number.

421453453 is a deficient number, since it is larger than the sum of its proper divisors (7502227).

421453453 is an equidigital number, since it uses as much as digits as its factorization.

421453453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9627.

The product of its digits is 28800, while the sum is 31.

The square root of 421453453 is about 20529.3315283279. The cubic root of 421453453 is about 749.7501111203.

The spelling of 421453453 in words is "four hundred twenty-one million, four hundred fifty-three thousand, four hundred fifty-three".