142244413640 has 32 divisors (see below), whose sum is σ = 365771350080. Its totient is φ = 48769513152.

The previous prime is 142244413639. The next prime is 142244413679. The reversal of 142244413640 is 46314442241.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 142244413640.

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, 254007602 + ... + 254008161.

It is an arithmetic number, because the mean of its divisors is an integer number (11430354690).

Almost surely, 2^142244413640 is an apocalyptic number.

142244413640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142244413640 is an abundant number, since it is smaller than the sum of its proper divisors (223526936440).

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

142244413640 is a wasteful number, since it uses less digits than its factorization.

142244413640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508015781 (or 508015777 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 142244413640 its reverse (46314442241), we get a palindrome (188558855881).

The spelling of 142244413640 in words is "one hundred forty-two billion, two hundred forty-four million, four hundred thirteen thousand, six hundred forty".