445143450 has 48 divisors (see below), whose sum is σ = 1106000640. Its totient is φ = 118485120.

The previous prime is 445143427. The next prime is 445143451. The reversal of 445143450 is 54341544.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (445143451) 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 23 ways as a sum of consecutive naturals, for example, 88606 + ... + 93494.

It is an arithmetic number, because the mean of its divisors is an integer number (23041680).

Almost surely, 2^445143450 is an apocalyptic number.

445143450 is an abundant number, since it is smaller than the sum of its proper divisors (660857190).

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

445143450 is a wasteful number, since it uses less digits than its factorization.

445143450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511 (or 5506 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 445143450 is about 21098.4229268446. The cubic root of 445143450 is about 763.5426996155.

Adding to 445143450 its reverse (54341544), we get a palindrome (499484994).

The spelling of 445143450 in words is "four hundred forty-five million, one hundred forty-three thousand, four hundred fifty".