142909704 has 128 divisors (see below), whose sum is σ = 463564800. Its totient is φ = 39942720.

The previous prime is 142909699. The next prime is 142909717. The reversal of 142909704 is 407909241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70059 + ... + 72069.

It is an arithmetic number, because the mean of its divisors is an integer number (3621600).

Almost surely, 2^142909704 is an apocalyptic number.

142909704 is a gapful number since it is divisible by the number (14) 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 142909704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231782400).

142909704 is an abundant number, since it is smaller than the sum of its proper divisors (320655096).

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

142909704 is a wasteful number, since it uses less digits than its factorization.

142909704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080 (or 2070 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 142909704 is about 11954.4846814909. The cubic root of 142909704 is about 522.8220631435.

The spelling of 142909704 in words is "one hundred forty-two million, nine hundred nine thousand, seven hundred four".