1720584012 has 48 divisors (see below), whose sum is σ = 4651092992. Its totient is φ = 484859520.

The previous prime is 1720584011. The next prime is 1720584043. The reversal of 1720584012 is 2104850271.

It is a super-2 number, since 2×1720584012² = 5920818684700032288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1720584011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134164 + ... + 146427.

Almost surely, 2^1720584012 is an apocalyptic number.

1720584012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1720584012 is an abundant number, since it is smaller than the sum of its proper divisors (2930508980).

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

1720584012 is a wasteful number, since it uses less digits than its factorization.

1720584012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280678 (or 280676 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 1720584012 is about 41479.9229989642. The cubic root of 1720584012 is about 1198.2808744600.

The spelling of 1720584012 in words is "one billion, seven hundred twenty million, five hundred eighty-four thousand, twelve".