445074381 has 12 divisors (see below), whose sum is σ = 657836608. Its totient is φ = 289815624.

The previous prime is 445074379. The next prime is 445074389. The reversal of 445074381 is 183470544.

It is not a de Polignac number, because 445074381 - 2¹ = 445074379 is a prime.

It is a super-2 number, since 2×445074381² = 396182409245066322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445074389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574645 + ... + 575418.

Almost surely, 2^445074381 is an apocalyptic number.

It is an amenable number.

445074381 is a deficient number, since it is larger than the sum of its proper divisors (212762227).

445074381 is a wasteful number, since it uses less digits than its factorization.

445074381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150112 (or 1150109 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 445074381 is about 21096.7860348443. The cubic root of 445074381 is about 763.5032068343.

The spelling of 445074381 in words is "four hundred forty-five million, seventy-four thousand, three hundred eighty-one".