445352140 has 24 divisors (see below), whose sum is σ = 935921952. Its totient is φ = 178010880.

The previous prime is 445352113. The next prime is 445352143. The reversal of 445352140 is 41253544.

It is a junction number, because it is equal to n+sod(n) for n = 445352099 and 445352108.

It is not an unprimeable number, because it can be changed into a prime (445352143) by changing a digit.

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, 22852 + ... + 37588.

It is an arithmetic number, because the mean of its divisors is an integer number (38996748).

Almost surely, 2^445352140 is an apocalyptic number.

It is an amenable number.

445352140 is an abundant number, since it is smaller than the sum of its proper divisors (490569812).

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

445352140 is a wasteful number, since it uses less digits than its factorization.

445352140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16257 (or 16255 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 445352140 is about 21103.3679776475. The cubic root of 445352140 is about 763.6620011062.

The spelling of 445352140 in words is "four hundred forty-five million, three hundred fifty-two thousand, one hundred forty".