445345000 has 40 divisors (see below), whose sum is σ = 1043455050. Its totient is φ = 178136000.

The previous prime is 445344989. The next prime is 445345007. The reversal of 445345000 is 543544.

It can be written as a sum of positive squares in 5 ways, for example, as 2579236 + 442765764 = 1606^2 + 21042^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (445345007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39535 + ... + 49534.

Almost surely, 2^445345000 is an apocalyptic number.

445345000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445345000 is an abundant number, since it is smaller than the sum of its proper divisors (598110050).

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

445345000 is an equidigital number, since it uses as much as digits as its factorization.

445345000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89095 (or 89076 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 445345000 is about 21103.1988096592. The cubic root of 445345000 is about 763.6579200092.

Adding to 445345000 its reverse (543544), we get a palindrome (445888544).

The spelling of 445345000 in words is "four hundred forty-five million, three hundred forty-five thousand".