142032032440 has 64 divisors (see below), whose sum is σ = 324058656960. Its totient is φ = 56015723520.

The previous prime is 142032032383. The next prime is 142032032449. The reversal of 142032032440 is 44230230241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142032032449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11413902 + ... + 11426338.

It is an arithmetic number, because the mean of its divisors is an integer number (5063416515).

Almost surely, 2^142032032440 is an apocalyptic number.

142032032440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142032032440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162029328480).

142032032440 is an abundant number, since it is smaller than the sum of its proper divisors (182026624520).

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

142032032440 is a wasteful number, since it uses less digits than its factorization.

142032032440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16432 (or 16428 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 142032032440 its reverse (44230230241), we get a palindrome (186262262681).

The spelling of 142032032440 in words is "one hundred forty-two billion, thirty-two million, thirty-two thousand, four hundred forty".