421340001 has 16 divisors (see below), whose sum is σ = 565813248. Its totient is φ = 278888400.

The previous prime is 421339969. The next prime is 421340011. The reversal of 421340001 is 100043124.

It is not a de Polignac number, because 421340001 - 2⁵ = 421339969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421340011) 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 15 ways as a sum of consecutive naturals, for example, 285696 + ... + 287166.

It is an arithmetic number, because the mean of its divisors is an integer number (35363328).

Almost surely, 2^421340001 is an apocalyptic number.

It is an amenable number.

421340001 is a deficient number, since it is larger than the sum of its proper divisors (144473247).

421340001 is a wasteful number, since it uses less digits than its factorization.

421340001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 421340001 is about 20526.5681739545. The cubic root of 421340001 is about 749.6828294449.

Adding to 421340001 its reverse (100043124), we get a palindrome (521383125).

The spelling of 421340001 in words is "four hundred twenty-one million, three hundred forty thousand, one".