142735780 has 48 divisors (see below), whose sum is σ = 337559040. Its totient is φ = 50227200.

The previous prime is 142735777. The next prime is 142735787. The reversal of 142735780 is 87537241.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (142735787) 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, 3645 + ... + 17284.

It is an arithmetic number, because the mean of its divisors is an integer number (7032480).

Almost surely, 2^142735780 is an apocalyptic number.

142735780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142735780 is an abundant number, since it is smaller than the sum of its proper divisors (194823260).

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

142735780 is a wasteful number, since it uses less digits than its factorization.

142735780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20980 (or 20978 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 142735780 is about 11947.2080420490. The cubic root of 142735780 is about 522.6098820358.

The spelling of 142735780 in words is "one hundred forty-two million, seven hundred thirty-five thousand, seven hundred eighty".