445114421 has 4 divisors (see below), whose sum is σ = 445255500. Its totient is φ = 444973344.

The previous prime is 445114391. The next prime is 445114427. The reversal of 445114421 is 124411544.

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 269419396 + 175695025 = 16414^2 + 13255^2 .

It is a cyclic number.

It is not a de Polignac number, because 445114421 - 2⁶ = 445114357 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 (445114427) 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, 65696 + ... + 72153.

It is an arithmetic number, because the mean of its divisors is an integer number (111313875).

Almost surely, 2^445114421 is an apocalyptic number.

It is an amenable number.

445114421 is a deficient number, since it is larger than the sum of its proper divisors (141079).

445114421 is a wasteful number, since it uses less digits than its factorization.

445114421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141078.

The product of its digits is 2560, while the sum is 26.

The square root of 445114421 is about 21097.7349732145. The cubic root of 445114421 is about 763.5261016979.

Adding to 445114421 its reverse (124411544), we get a palindrome (569525965).

The spelling of 445114421 in words is "four hundred forty-five million, one hundred fourteen thousand, four hundred twenty-one".