1442232155540 has 96 divisors (see below), whose sum is σ = 3498789168000. Its totient is φ = 493540024320.

The previous prime is 1442232155479. The next prime is 1442232155561. The reversal of 1442232155540 is 455512322441.

It is a junction number, because it is equal to n+sod(n) for n = 1442232155494 and 1442232155503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42241196 + ... + 42275324.

It is an arithmetic number, because the mean of its divisors is an integer number (36445720500).

Almost surely, 2^{1442232155540} is an apocalyptic number.

1442232155540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442232155540 is an abundant number, since it is smaller than the sum of its proper divisors (2056557012460).

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

1442232155540 is a wasteful number, since it uses less digits than its factorization.

1442232155540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45465 (or 45463 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 1442232155540 its reverse (455512322441), we get a palindrome (1897744477981).

The spelling of 1442232155540 in words is "one trillion, four hundred forty-two billion, two hundred thirty-two million, one hundred fifty-five thousand, five hundred forty".