421344001 has 8 divisors (see below), whose sum is σ = 455908544. Its totient is φ = 387087120.

The previous prime is 421343999. The next prime is 421344013. The reversal of 421344001 is 100443124.

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

It is a cyclic number.

It is not a de Polignac number, because 421344001 - 2¹ = 421343999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421344001.

It is not an unprimeable number, because it can be changed into a prime (421344701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74061 + ... + 79546.

It is an arithmetic number, because the mean of its divisors is an integer number (56988568).

Almost surely, 2^421344001 is an apocalyptic number.

It is an amenable number.

421344001 is a deficient number, since it is larger than the sum of its proper divisors (34564543).

421344001 is a wasteful number, since it uses less digits than its factorization.

421344001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153831.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 421344001 is about 20526.6656084226. The cubic root of 421344001 is about 749.6852018139.

Adding to 421344001 its reverse (100443124), we get a palindrome (521787125).

The spelling of 421344001 in words is "four hundred twenty-one million, three hundred forty-four thousand, one".