142204520440 has 64 divisors (see below), whose sum is σ = 321295030560. Its totient is φ = 56644738560.

The previous prime is 142204520411. The next prime is 142204520461. The reversal of 142204520440 is 44025402241.

It is a junction number, because it is equal to n+sod(n) for n = 142204520399 and 142204520408.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36905554 + ... + 36909406.

Almost surely, 2^142204520440 is an apocalyptic number.

142204520440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142204520440 is an abundant number, since it is smaller than the sum of its proper divisors (179090510120).

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

142204520440 is a wasteful number, since it uses less digits than its factorization.

142204520440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7472 (or 7468 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 142204520440 its reverse (44025402241), we get a palindrome (186229922681).

The spelling of 142204520440 in words is "one hundred forty-two billion, two hundred four million, five hundred twenty thousand, four hundred forty".