1022454545440 has 24 divisors (see below), whose sum is σ = 2415548863980. Its totient is φ = 408981818112.

The previous prime is 1022454545423. The next prime is 1022454545443. The reversal of 1022454545440 is 445454542201.

It can be written as a sum of positive squares in 2 ways, for example, as 847600105104 + 174854440336 = 920652^2 + 418156^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1022454545393 and 1022454545402.

It is not an unprimeable number, because it can be changed into a prime (1022454545443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3195170295 + ... + 3195170614.

Almost surely, 2^{1022454545440} is an apocalyptic number.

1022454545440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022454545440 is an abundant number, since it is smaller than the sum of its proper divisors (1393094318540).

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

1022454545440 is an equidigital number, since it uses as much as digits as its factorization.

1022454545440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390340924 (or 6390340916 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 40.

The spelling of 1022454545440 in words is "one trillion, twenty-two billion, four hundred fifty-four million, five hundred forty-five thousand, four hundred forty".