142020734820 has 48 divisors (see below), whose sum is σ = 403593263808. Its totient is φ = 37306938240.

The previous prime is 142020734803. The next prime is 142020734833. The reversal of 142020734820 is 28437020241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17660251 + ... + 17668290.

It is an arithmetic number, because the mean of its divisors is an integer number (8408192996).

Almost surely, 2^142020734820 is an apocalyptic number.

142020734820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142020734820 is an abundant number, since it is smaller than the sum of its proper divisors (261572528988).

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

142020734820 is a wasteful number, since it uses less digits than its factorization.

142020734820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35328620 (or 35328618 counting only the distinct ones).

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

The spelling of 142020734820 in words is "one hundred forty-two billion, twenty million, seven hundred thirty-four thousand, eight hundred twenty".