441621345 has 16 divisors (see below), whose sum is σ = 770830272. Its totient is φ = 214119360.

The previous prime is 441621343. The next prime is 441621361. The reversal of 441621345 is 543126144.

It is not a de Polignac number, because 441621345 - 2¹ = 441621343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (441621343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338082 + ... + 1338411.

It is an arithmetic number, because the mean of its divisors is an integer number (48176892).

Almost surely, 2^441621345 is an apocalyptic number.

It is an amenable number.

441621345 is a deficient number, since it is larger than the sum of its proper divisors (329208927).

441621345 is a wasteful number, since it uses less digits than its factorization.

441621345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676512.

The product of its digits is 11520, while the sum is 30.

The square root of 441621345 is about 21014.7887212791. The cubic root of 441621345 is about 761.5235739557.

Adding to 441621345 its reverse (543126144), we get a palindrome (984747489).

The spelling of 441621345 in words is "four hundred forty-one million, six hundred twenty-one thousand, three hundred forty-five".