421340307 has 8 divisors (see below), whose sum is σ = 564891600. Its totient is φ = 279341280.

The previous prime is 421340281. The next prime is 421340317. The reversal of 421340307 is 703043124.

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

It is not a de Polignac number, because 421340307 - 2¹¹ = 421338259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421340317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387432 + ... + 388517.

It is an arithmetic number, because the mean of its divisors is an integer number (70611450).

Almost surely, 2^421340307 is an apocalyptic number.

421340307 is a deficient number, since it is larger than the sum of its proper divisors (143551293).

421340307 is a wasteful number, since it uses less digits than its factorization.

421340307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776133.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 421340307 is about 20526.5756277076. The cubic root of 421340307 is about 749.6830109317.

The spelling of 421340307 in words is "four hundred twenty-one million, three hundred forty thousand, three hundred seven".