1712978344 has 128 divisors (see below), whose sum is σ = 4355493120. Its totient is φ = 611020800.

The previous prime is 1712978317. The next prime is 1712978353. The reversal of 1712978344 is 4438792171.

It is a junction number, because it is equal to n+sod(n) for n = 1712978294 and 1712978303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385254 + ... + 389674.

It is an arithmetic number, because the mean of its divisors is an integer number (34027290).

Almost surely, 2^1712978344 is an apocalyptic number.

1712978344 is a gapful number since it is divisible by the number (14) 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 1712978344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177746560).

1712978344 is an abundant number, since it is smaller than the sum of its proper divisors (2642514776).

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

1712978344 is a wasteful number, since it uses less digits than its factorization.

1712978344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499 (or 4495 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 1712978344 is about 41388.1425531516. The cubic root of 1712978344 is about 1196.5126398987.

The spelling of 1712978344 in words is "one billion, seven hundred twelve million, nine hundred seventy-eight thousand, three hundred forty-four".