1445220512040 has 32 divisors (see below), whose sum is σ = 4335661536480. Its totient is φ = 385392136512.

The previous prime is 1445220512039. The next prime is 1445220512111. The reversal of 1445220512040 is 402150225441.

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

It is a junction number, because it is equal to n+sod(n) for n = 1445220511989 and 1445220512007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6021752014 + ... + 6021752253.

It is an arithmetic number, because the mean of its divisors is an integer number (135489423015).

Almost surely, 2^{1445220512040} is an apocalyptic number.

1445220512040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445220512040 is an abundant number, since it is smaller than the sum of its proper divisors (2890441024440).

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

1445220512040 is a wasteful number, since it uses less digits than its factorization.

1445220512040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12043504281 (or 12043504277 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 1445220512040 its reverse (402150225441), we get a palindrome (1847370737481).

The spelling of 1445220512040 in words is "one trillion, four hundred forty-five billion, two hundred twenty million, five hundred twelve thousand, forty".