421543914 has 24 divisors (see below), whose sum is σ = 926701440. Its totient is φ = 127740360.

The previous prime is 421543873. The next prime is 421543933. The reversal of 421543914 is 419345124.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289594 + ... + 291045.

It is an arithmetic number, because the mean of its divisors is an integer number (38612560).

Almost surely, 2^421543914 is an apocalyptic number.

421543914 is an abundant number, since it is smaller than the sum of its proper divisors (505157526).

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

421543914 is a wasteful number, since it uses less digits than its factorization.

421543914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580666 (or 580655 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 421543914 is about 20531.5346235979. The cubic root of 421543914 is about 749.8037495410.

The spelling of 421543914 in words is "four hundred twenty-one million, five hundred forty-three thousand, nine hundred fourteen".