142758720 has 448 divisors, whose sum is σ = 573511680. Its totient is φ = 33177600.

The previous prime is 142758713. The next prime is 142758739. The reversal of 142758720 is 27857241.

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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3481900 + ... + 3481940.

It is an arithmetic number, because the mean of its divisors is an integer number (1280160).

Almost surely, 2^142758720 is an apocalyptic number.

142758720 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 142758720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286755840).

142758720 is an abundant number, since it is smaller than the sum of its proper divisors (430752960).

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

142758720 is a wasteful number, since it uses less digits than its factorization.

142758720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 142758720 is about 11948.1680604183. The cubic root of 142758720 is about 522.6378778858.

The spelling of 142758720 in words is "one hundred forty-two million, seven hundred fifty-eight thousand, seven hundred twenty".