1572249072 has 80 divisors (see below), whose sum is σ = 4211159040. Its totient is φ = 504940800.

The previous prime is 1572249067. The next prime is 1572249089. The reversal of 1572249072 is 2709422751.

It is a super-2 number, since 2×1572249072² = 4943934288809722368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1572249072.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353422 + ... + 357842.

It is an arithmetic number, because the mean of its divisors is an integer number (52639488).

Almost surely, 2^1572249072 is an apocalyptic number.

1572249072 is a gapful number since it is divisible by the number (12) 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 1572249072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2105579520).

1572249072 is an abundant number, since it is smaller than the sum of its proper divisors (2638909968).

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

1572249072 is a wasteful number, since it uses less digits than its factorization.

1572249072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702 (or 4696 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 1572249072 is about 39651.5960838905. The cubic root of 1572249072 is about 1162.8056028090.

The spelling of 1572249072 in words is "one billion, five hundred seventy-two million, two hundred forty-nine thousand, seventy-two".