1720142336 has 40 divisors (see below), whose sum is σ = 3749385024. Its totient is φ = 781880320.

The previous prime is 1720142329. The next prime is 1720142351. The reversal of 1720142336 is 6332410271.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1720142299 and 1720142308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147080 + ... + 158343.

Almost surely, 2^1720142336 is an apocalyptic number.

1720142336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1720142336 is an abundant number, since it is smaller than the sum of its proper divisors (2029242688).

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

1720142336 is an equidigital number, since it uses as much as digits as its factorization.

1720142336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305452 (or 305436 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1720142336 is about 41474.5986840138. The cubic root of 1720142336 is about 1198.1783323013.

The spelling of 1720142336 in words is "one billion, seven hundred twenty million, one hundred forty-two thousand, three hundred thirty-six".