142748340 has 96 divisors (see below), whose sum is σ = 463325184. Its totient is φ = 32161920.

The previous prime is 142748293. The next prime is 142748341. The reversal of 142748340 is 43847241.

142748340 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

142748340 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142748341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27427 + ... + 32213.

It is an arithmetic number, because the mean of its divisors is an integer number (4826304).

Almost surely, 2^142748340 is an apocalyptic number.

142748340 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 142748340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231662592).

142748340 is an abundant number, since it is smaller than the sum of its proper divisors (320576844).

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

142748340 is a wasteful number, since it uses less digits than its factorization.

142748340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4877 (or 4875 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 142748340 is about 11947.7336763087. The cubic root of 142748340 is about 522.6252105624.

The spelling of 142748340 in words is "one hundred forty-two million, seven hundred forty-eight thousand, three hundred forty".