1725221964 has 48 divisors (see below), whose sum is σ = 4246502400. Its totient is φ = 543635136.

The previous prime is 1725221959. The next prime is 1725221969. The reversal of 1725221964 is 4691225271.

It is an interprime number because it is at equal distance from previous prime (1725221959) and next prime (1725221969).

It is not an unprimeable number, because it can be changed into a prime (1725221969) 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, 101314 + ... + 117110.

It is an arithmetic number, because the mean of its divisors is an integer number (88468800).

Almost surely, 2^1725221964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1725221964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2123251200).

1725221964 is an abundant number, since it is smaller than the sum of its proper divisors (2521280436).

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

1725221964 is a wasteful number, since it uses less digits than its factorization.

1725221964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16302 (or 16300 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 1725221964 is about 41535.7913611863. The cubic root of 1725221964 is about 1199.3565911937.

The spelling of 1725221964 in words is "one billion, seven hundred twenty-five million, two hundred twenty-one thousand, nine hundred sixty-four".