142002340 has 48 divisors (see below), whose sum is σ = 307315008. Its totient is φ = 55085184.

The previous prime is 142002313. The next prime is 142002349. The reversal of 142002340 is 43200241.

142002340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142002349) 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, 139674 + ... + 140686.

It is an arithmetic number, because the mean of its divisors is an integer number (6402396).

Almost surely, 2^142002340 is an apocalyptic number.

142002340 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 142002340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153657504).

142002340 is an abundant number, since it is smaller than the sum of its proper divisors (165312668).

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

142002340 is a wasteful number, since it uses less digits than its factorization.

142002340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 142002340 is about 11916.4734716274. The cubic root of 142002340 is about 521.7132103448.

Adding to 142002340 its reverse (43200241), we get a palindrome (185202581).

The spelling of 142002340 in words is "one hundred forty-two million, two thousand, three hundred forty".