414445421 has 4 divisors (see below), whose sum is σ = 446325852. Its totient is φ = 382564992.

The previous prime is 414445411. The next prime is 414445429. The reversal of 414445421 is 124544414.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 270109225 + 144336196 = 16435^2 + 12014^2 .

It is a cyclic number.

It is not a de Polignac number, because 414445421 - 2⁶ = 414445357 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 (414445429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15940196 + ... + 15940221.

It is an arithmetic number, because the mean of its divisors is an integer number (111581463).

Almost surely, 2^414445421 is an apocalyptic number.

It is an amenable number.

414445421 is a deficient number, since it is larger than the sum of its proper divisors (31880431).

414445421 is a wasteful number, since it uses less digits than its factorization.

414445421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31880430.

The product of its digits is 10240, while the sum is 29.

The square root of 414445421 is about 20357.9326307953. The cubic root of 414445421 is about 745.5711854653.

Adding to 414445421 its reverse (124544414), we get a palindrome (538989835).

The spelling of 414445421 in words is "four hundred fourteen million, four hundred forty-five thousand, four hundred twenty-one".