1024421153540 has 24 divisors (see below), whose sum is σ = 2173462616472. Its totient is φ = 405544043520.

The previous prime is 1024421153537. The next prime is 1024421153593. The reversal of 1024421153540 is 453511244201.

It can be written as a sum of positive squares in 4 ways, for example, as 77365197316 + 947055956224 = 278146^2 + 973168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1024421153497 and 1024421153506.

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, 264024131 + ... + 264028010.

It is an arithmetic number, because the mean of its divisors is an integer number (90560942353).

Almost surely, 2^{1024421153540} is an apocalyptic number.

1024421153540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1024421153540 is an abundant number, since it is smaller than the sum of its proper divisors (1149041462932).

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

1024421153540 is a wasteful number, since it uses less digits than its factorization.

1024421153540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528052247 (or 528052245 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 1024421153540 its reverse (453511244201), we get a palindrome (1477932397741).

The spelling of 1024421153540 in words is "one trillion, twenty-four billion, four hundred twenty-one million, one hundred fifty-three thousand, five hundred forty".