142206744 has 32 divisors (see below), whose sum is σ = 358974720. Its totient is φ = 46941216.

The previous prime is 142206739. The next prime is 142206767. The reversal of 142206744 is 447602241.

142206744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 26292 + ... + 31235.

It is an arithmetic number, because the mean of its divisors is an integer number (11217960).

Almost surely, 2^142206744 is an apocalyptic number.

It is an amenable number.

142206744 is an abundant number, since it is smaller than the sum of its proper divisors (216767976).

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

142206744 is a wasteful number, since it uses less digits than its factorization.

142206744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57639 (or 57635 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 142206744 is about 11925.0469181467. The cubic root of 142206744 is about 521.9634154716.

Adding to 142206744 its reverse (447602241), we get a palindrome (589808985).

The spelling of 142206744 in words is "one hundred forty-two million, two hundred six thousand, seven hundred forty-four".