421513401 has 8 divisors (see below), whose sum is σ = 565790400. Its totient is φ = 279122672.

The previous prime is 421513373. The next prime is 421513409. The reversal of 421513401 is 104315124.

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 421513401 - 2⁵ = 421513369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421513409) 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, 471045 + ... + 471938.

It is an arithmetic number, because the mean of its divisors is an integer number (70723800).

Almost surely, 2^421513401 is an apocalyptic number.

It is an amenable number.

421513401 is a deficient number, since it is larger than the sum of its proper divisors (144276999).

421513401 is a wasteful number, since it uses less digits than its factorization.

421513401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943135.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 421513401 is about 20530.7915336940. The cubic root of 421513401 is about 749.7856578602.

Adding to 421513401 its reverse (104315124), we get a palindrome (525828525).

The spelling of 421513401 in words is "four hundred twenty-one million, five hundred thirteen thousand, four hundred one".