1230504405440 has 56 divisors (see below), whose sum is σ = 3084356452560. Its totient is φ = 466296403968.

The previous prime is 1230504405437. The next prime is 1230504405463. The reversal of 1230504405440 is 445044050321.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1230504405397 and 1230504405406.

It is a congruent number.

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, 101186717 + ... + 101198876.

Almost surely, 2^{1230504405440} is an apocalyptic number.

1230504405440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230504405440 is an abundant number, since it is smaller than the sum of its proper divisors (1853852047120).

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

1230504405440 is a wasteful number, since it uses less digits than its factorization.

1230504405440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202385629 (or 202385619 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 1230504405440 its reverse (445044050321), we get a palindrome (1675548455761).

The spelling of 1230504405440 in words is "one trillion, two hundred thirty billion, five hundred four million, four hundred five thousand, four hundred forty".