1722212016 has 60 divisors (see below), whose sum is σ = 5175429912. Its totient is φ = 492059904.

The previous prime is 1722211991. The next prime is 1722212039. The reversal of 1722212016 is 6102122271.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 11 ways as a sum of consecutive naturals, for example, 363765 + ... + 368468.

Almost surely, 2^1722212016 is an apocalyptic number.

1722212016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1722212016 is an abundant number, since it is smaller than the sum of its proper divisors (3453217896).

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

1722212016 is a wasteful number, since it uses less digits than its factorization.

1722212016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732258 (or 732245 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1722212016 is about 41499.5423589225. The cubic root of 1722212016 is about 1198.6586901875.

Adding to 1722212016 its reverse (6102122271), we get a palindrome (7824334287).

The spelling of 1722212016 in words is "one billion, seven hundred twenty-two million, two hundred twelve thousand, sixteen".