1720632272 has 20 divisors (see below), whose sum is σ = 3411254880. Its totient is φ = 840308448.

The previous prime is 1720632239. The next prime is 1720632301. The reversal of 1720632272 is 2722360271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249772 + ... + 1251147.

It is an arithmetic number, because the mean of its divisors is an integer number (170562744).

Almost surely, 2^1720632272 is an apocalyptic number.

It is an amenable number.

1720632272 is a deficient number, since it is larger than the sum of its proper divisors (1690622608).

1720632272 is a wasteful number, since it uses less digits than its factorization.

1720632272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500970 (or 2500964 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 1720632272 is about 41480.5047220981. The cubic root of 1720632272 is about 1198.2920777286.

The spelling of 1720632272 in words is "one billion, seven hundred twenty million, six hundred thirty-two thousand, two hundred seventy-two".