421449927 has 12 divisors (see below), whose sum is σ = 566287800. Its totient is φ = 278793520.

The previous prime is 421449913. The next prime is 421449983. The reversal of 421449927 is 729944124.

It is not a de Polignac number, because 421449927 - 2⁶ = 421449863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421449527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433552 + ... + 434522.

It is an arithmetic number, because the mean of its divisors is an integer number (47190650).

Almost surely, 2^421449927 is an apocalyptic number.

421449927 is a deficient number, since it is larger than the sum of its proper divisors (144837873).

421449927 is an frugal number, since it uses more digits than its factorization.

421449927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094 (or 1123 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 421449927 is about 20529.2456510219. The cubic root of 421449927 is about 749.7480202400.

The spelling of 421449927 in words is "four hundred twenty-one million, four hundred forty-nine thousand, nine hundred twenty-seven".