445541013 has 32 divisors (see below), whose sum is σ = 713609600. Its totient is φ = 273777408.

The previous prime is 445541003. The next prime is 445541029. The reversal of 445541013 is 310145544.

It is a happy number.

445541013 is a `hidden beast` number, since 4 + 4 + 554 + 101 + 3 = 666.

It is not a de Polignac number, because 445541013 - 2¹⁷ = 445409941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445541003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7245 + ... + 30717.

It is an arithmetic number, because the mean of its divisors is an integer number (22300300).

Almost surely, 2^445541013 is an apocalyptic number.

It is an amenable number.

445541013 is a deficient number, since it is larger than the sum of its proper divisors (268068587).

445541013 is a wasteful number, since it uses less digits than its factorization.

445541013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23538 (or 23532 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 445541013 is about 21107.8424525104. The cubic root of 445541013 is about 763.7699417185.

Adding to 445541013 its reverse (310145544), we get a palindrome (755686557).

The spelling of 445541013 in words is "four hundred forty-five million, five hundred forty-one thousand, thirteen".