142400042750 has 32 divisors (see below), whose sum is σ = 304654723776. Its totient is φ = 48822871200.

The previous prime is 142400042731. The next prime is 142400042753. The reversal of 142400042750 is 57240004241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142400042753) 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, 40683977 + ... + 40687476.

It is an arithmetic number, because the mean of its divisors is an integer number (9520460118).

Almost surely, 2^142400042750 is an apocalyptic number.

142400042750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142400042750 is an abundant number, since it is smaller than the sum of its proper divisors (162254681026).

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

142400042750 is an equidigital number, since it uses as much as digits as its factorization.

142400042750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81371477 (or 81371467 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

Adding to 142400042750 its reverse (57240004241), we get a palindrome (199640046991).

The spelling of 142400042750 in words is "one hundred forty-two billion, four hundred million, forty-two thousand, seven hundred fifty".