142234412303440 has 40 divisors (see below), whose sum is σ = 330949978013160. Its totient is φ = 56849899216896.

The previous prime is 142234412303429. The next prime is 142234412303443. The reversal of 142234412303440 is 44303214432241.

It can be written as a sum of positive squares in 4 ways, for example, as 82591598592064 + 59642813711376 = 9087992^2 + 7722876^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 142234412303440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142234412303443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685297225 + ... + 685504744.

It is an arithmetic number, because the mean of its divisors is an integer number (8273749450329).

Almost surely, 2^{142234412303440} is an apocalyptic number.

142234412303440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142234412303440 is an abundant number, since it is smaller than the sum of its proper divisors (188715565709720).

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

142234412303440 is a wasteful number, since it uses less digits than its factorization.

142234412303440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370803279 (or 1370803273 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 142234412303440 its reverse (44303214432241), we get a palindrome (186537626735681).

The spelling of 142234412303440 in words is "one hundred forty-two trillion, two hundred thirty-four billion, four hundred twelve million, three hundred three thousand, four hundred forty".