1721149032 has 64 divisors (see below), whose sum is σ = 4373328960. Its totient is φ = 564364800.

The previous prime is 1721148983. The next prime is 1721149039. The reversal of 1721149032 is 2309411271.

It is not an unprimeable number, because it can be changed into a prime (1721149039) 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, 806607 + ... + 808737.

It is an arithmetic number, because the mean of its divisors is an integer number (68333265).

Almost surely, 2^1721149032 is an apocalyptic number.

1721149032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1721149032 is an abundant number, since it is smaller than the sum of its proper divisors (2652179928).

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

1721149032 is a wasteful number, since it uses less digits than its factorization.

1721149032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1721149032 is about 41486.7332047246. The cubic root of 1721149032 is about 1198.4120273237.

The spelling of 1721149032 in words is "one billion, seven hundred twenty-one million, one hundred forty-nine thousand, thirty-two".