1716121340 has 24 divisors (see below), whose sum is σ = 3680534592. Its totient is φ = 671842880.

The previous prime is 1716121331. The next prime is 1716121349. The reversal of 1716121340 is 431216171.

It is an interprime number because it is at equal distance from previous prime (1716121331) and next prime (1716121349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716121349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911891 + ... + 913770.

It is an arithmetic number, because the mean of its divisors is an integer number (153355608).

Almost surely, 2^1716121340 is an apocalyptic number.

1716121340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1716121340 is an abundant number, since it is smaller than the sum of its proper divisors (1964413252).

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

1716121340 is a wasteful number, since it uses less digits than its factorization.

1716121340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825717 (or 1825715 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1716121340 is about 41426.0949161274. The cubic root of 1716121340 is about 1197.2439853503.

The spelling of 1716121340 in words is "one billion, seven hundred sixteen million, one hundred twenty-one thousand, three hundred forty".