1572720000 has 160 divisors (see below), whose sum is σ = 5221047480. Its totient is φ = 419328000.

The previous prime is 1572719999. The next prime is 1572720049. The reversal of 1572720000 is 272751.

It is a tau number, because it is divible by the number of its divisors (160).

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

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 236724 + ... + 243276.

Almost surely, 2^1572720000 is an apocalyptic number.

1572720000 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 1572720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2610523740).

1572720000 is an abundant number, since it is smaller than the sum of its proper divisors (3648327480).

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

1572720000 is an frugal number, since it uses more digits than its factorization.

1572720000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590 (or 6563 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 1572720000 is about 39657.5339626659. The cubic root of 1572720000 is about 1162.9216876928.

Adding to 1572720000 its reverse (272751), we get a palindrome (1572992751).

The spelling of 1572720000 in words is "one billion, five hundred seventy-two million, seven hundred twenty thousand".