445450340 has 24 divisors (see below), whose sum is σ = 945960120. Its totient is φ = 176177408.

The previous prime is 445450321. The next prime is 445450367. The reversal of 445450340 is 43054544.

It can be written as a sum of positive squares in 4 ways, for example, as 10394176 + 435056164 = 3224^2 + 20858^2 .

It is a super-2 number, since 2×445450340² = 396852010812231200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123347 + ... + 126906.

It is an arithmetic number, because the mean of its divisors is an integer number (39415005).

Almost surely, 2^445450340 is an apocalyptic number.

It is an amenable number.

445450340 is an abundant number, since it is smaller than the sum of its proper divisors (500509780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445450340 is a wasteful number, since it uses less digits than its factorization.

445450340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250351 (or 250349 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 445450340 is about 21105.6944922455. The cubic root of 445450340 is about 763.7181260544.

The spelling of 445450340 in words is "four hundred forty-five million, four hundred fifty thousand, three hundred forty".