441631145 has 8 divisors (see below), whose sum is σ = 533826504. Its totient is φ = 350725504.

The previous prime is 441631097. The next prime is 441631171. The reversal of 441631145 is 541136144.

It can be written as a sum of positive squares in 4 ways, for example, as 53816896 + 387814249 = 7336^2 + 19693^2 .

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 441631145 - 2⁶ = 441631081 is a prime.

It is a super-2 number, since 2×441631145² = 390076136468022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321674 + ... + 323043.

It is an arithmetic number, because the mean of its divisors is an integer number (66728313).

Almost surely, 2^441631145 is an apocalyptic number.

It is an amenable number.

441631145 is a deficient number, since it is larger than the sum of its proper divisors (92195359).

441631145 is a wasteful number, since it uses less digits than its factorization.

441631145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644859.

The product of its digits is 5760, while the sum is 29.

The square root of 441631145 is about 21015.0218891154. The cubic root of 441631145 is about 761.5292068928.

Adding to 441631145 its reverse (541136144), we get a palindrome (982767289).

The spelling of 441631145 in words is "four hundred forty-one million, six hundred thirty-one thousand, one hundred forty-five".