1445332020 has 96 divisors (see below), whose sum is σ = 4432530816. Its totient is φ = 348979200.

The previous prime is 1445332001. The next prime is 1445332069. The reversal of 1445332020 is 202335441.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 165360 + ... + 173880.

It is an arithmetic number, because the mean of its divisors is an integer number (46172196).

Almost surely, 2^1445332020 is an apocalyptic number.

1445332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445332020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2216265408).

1445332020 is an abundant number, since it is smaller than the sum of its proper divisors (2987198796).

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

1445332020 is a wasteful number, since it uses less digits than its factorization.

1445332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8801 (or 8799 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1445332020 is about 38017.5225389556. The cubic root of 1445332020 is about 1130.6353020362.

Adding to 1445332020 its reverse (202335441), we get a palindrome (1647667461).

The spelling of 1445332020 in words is "one billion, four hundred forty-five million, three hundred thirty-two thousand, twenty".