421010413 has 4 divisors (see below), whose sum is σ = 423214848. Its totient is φ = 418805980.

The previous prime is 421010399. The next prime is 421010419. The reversal of 421010413 is 314010124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421010413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421010419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101931 + ... + 1102312.

It is an arithmetic number, because the mean of its divisors is an integer number (105803712).

Almost surely, 2^421010413 is an apocalyptic number.

It is an amenable number.

421010413 is a deficient number, since it is larger than the sum of its proper divisors (2204435).

421010413 is a wasteful number, since it uses less digits than its factorization.

421010413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204434.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 421010413 is about 20518.5382763978. The cubic root of 421010413 is about 749.4873017487.

Adding to 421010413 its reverse (314010124), we get a palindrome (735020537).

The spelling of 421010413 in words is "four hundred twenty-one million, ten thousand, four hundred thirteen".