421452449 has 8 divisors (see below), whose sum is σ = 468441792. Its totient is φ = 375909040.

The previous prime is 421452397. The next prime is 421452467. The reversal of 421452449 is 944254124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421452449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421452649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360869 + ... + 362034.

It is an arithmetic number, because the mean of its divisors is an integer number (58555224).

Almost surely, 2^421452449 is an apocalyptic number.

It is an amenable number.

421452449 is a deficient number, since it is larger than the sum of its proper divisors (46989343).

421452449 is a wasteful number, since it uses less digits than its factorization.

421452449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722967.

The product of its digits is 46080, while the sum is 35.

The square root of 421452449 is about 20529.3070754958. The cubic root of 421452449 is about 749.7495157602.

The spelling of 421452449 in words is "four hundred twenty-one million, four hundred fifty-two thousand, four hundred forty-nine".