1445454604220 has 72 divisors (see below), whose sum is σ = 3393042534000. Its totient is φ = 516710993920.

The previous prime is 1445454604183. The next prime is 1445454604247. The reversal of 1445454604220 is 224064545441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4919045 + ... + 5204604.

It is an arithmetic number, because the mean of its divisors is an integer number (47125590750).

Almost surely, 2^{1445454604220} is an apocalyptic number.

1445454604220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445454604220 is an abundant number, since it is smaller than the sum of its proper divisors (1947587929780).

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

1445454604220 is a wasteful number, since it uses less digits than its factorization.

1445454604220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10123739 (or 10123726 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 41.

The spelling of 1445454604220 in words is "one trillion, four hundred forty-five billion, four hundred fifty-four million, six hundred four thousand, two hundred twenty".