1722018012 has 48 divisors (see below), whose sum is σ = 4720501632. Its totient is φ = 481682880.

The previous prime is 1722017971. The next prime is 1722018029. The reversal of 1722018012 is 2108102271.

It is a super-3 number, since 3×1722018012³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500038 + ... + 503469.

It is an arithmetic number, because the mean of its divisors is an integer number (98343784).

Almost surely, 2^1722018012 is an apocalyptic number.

1722018012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1722018012 is an abundant number, since it is smaller than the sum of its proper divisors (2998483620).

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

1722018012 is a wasteful number, since it uses less digits than its factorization.

1722018012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003538 (or 1003536 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 1722018012 is about 41497.2048697259. The cubic root of 1722018012 is about 1198.6136796021.

The spelling of 1722018012 in words is "one billion, seven hundred twenty-two million, eighteen thousand, twelve".