1722428760 has 128 divisors (see below), whose sum is σ = 5643509760. Its totient is φ = 417984000.

The previous prime is 1722428759. The next prime is 1722428839. The reversal of 1722428760 is 678242271.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102985 + ... + 118535.

It is an arithmetic number, because the mean of its divisors is an integer number (44089920).

Almost surely, 2^1722428760 is an apocalyptic number.

1722428760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1722428760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2821754880).

1722428760 is an abundant number, since it is smaller than the sum of its proper divisors (3921081000).

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

1722428760 is a wasteful number, since it uses less digits than its factorization.

1722428760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649 (or 15645 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 1722428760 is about 41502.1536790562. The cubic root of 1722428760 is about 1198.7089726495.

The spelling of 1722428760 in words is "one billion, seven hundred twenty-two million, four hundred twenty-eight thousand, seven hundred sixty".