17230993920 has 560 divisors, whose sum is σ = 70845287040. Its totient is φ = 3935526912.

The previous prime is 17230993919. The next prime is 17230993937. The reversal of 17230993920 is 2939903271.

It is a happy number.

17230993920 is a `hidden beast` number, since 172 + 3 + 0 + 99 + 392 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 13063021 + ... + 13064339.

Almost surely, 2^17230993920 is an apocalyptic number.

17230993920 is a gapful number since it is divisible by the number (10) 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 17230993920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35422643520).

17230993920 is an abundant number, since it is smaller than the sum of its proper divisors (53614293120).

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

17230993920 is an frugal number, since it uses more digits than its factorization.

17230993920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The spelling of 17230993920 in words is "seventeen billion, two hundred thirty million, nine hundred ninety-three thousand, nine hundred twenty".