142436320 has 144 divisors (see below), whose sum is σ = 382209408. Its totient is φ = 49812480.

The previous prime is 142436311. The next prime is 142436341. The reversal of 142436320 is 23634241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3030537 + ... + 3030583.

It is an arithmetic number, because the mean of its divisors is an integer number (2654232).

Almost surely, 2^142436320 is an apocalyptic number.

142436320 is a gapful number since it is divisible by the number (10) 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 142436320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191104704).

142436320 is an abundant number, since it is smaller than the sum of its proper divisors (239773088).

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

142436320 is a wasteful number, since it uses less digits than its factorization.

142436320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 142436320 is about 11934.6688265741. The cubic root of 142436320 is about 522.2441472276.

The spelling of 142436320 in words is "one hundred forty-two million, four hundred thirty-six thousand, three hundred twenty".