421450001 has 16 divisors (see below), whose sum is σ = 507586560. Its totient is φ = 341839440.

The previous prime is 421449989. The next prime is 421450019. The reversal of 421450001 is 100054124.

It is a cyclic number.

It is not a de Polignac number, because 421450001 - 2¹⁸ = 421187857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421450021) 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, 196706 + ... + 198836.

It is an arithmetic number, because the mean of its divisors is an integer number (31724160).

Almost surely, 2^421450001 is an apocalyptic number.

It is an amenable number.

421450001 is a deficient number, since it is larger than the sum of its proper divisors (86136559).

421450001 is a wasteful number, since it uses less digits than its factorization.

421450001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 421450001 is about 20529.2474533286. The cubic root of 421450001 is about 749.7480641213.

The spelling of 421450001 in words is "four hundred twenty-one million, four hundred fifty thousand, one".