1445400331140 has 24 divisors (see below), whose sum is σ = 4047120927360. Its totient is φ = 385440088288.

The previous prime is 1445400331139. The next prime is 1445400331211. The reversal of 1445400331140 is 411330045441.

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 = 1445400331098 and 1445400331107.

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, 12045002700 + ... + 12045002819.

It is an arithmetic number, because the mean of its divisors is an integer number (168630038640).

Almost surely, 2^{1445400331140} is an apocalyptic number.

1445400331140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445400331140 is an abundant number, since it is smaller than the sum of its proper divisors (2601720596220).

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

1445400331140 is a wasteful number, since it uses less digits than its factorization.

1445400331140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24090005531 (or 24090005529 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1445400331140 its reverse (411330045441), we get a palindrome (1856730376581).

The spelling of 1445400331140 in words is "one trillion, four hundred forty-five billion, four hundred million, three hundred thirty-one thousand, one hundred forty".