1572797088 has 84 divisors (see below), whose sum is σ = 4642611498. Its totient is φ = 524257920.

The previous prime is 1572797069. The next prime is 1572797117. The reversal of 1572797088 is 8807972751.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1277919504 + 294877584 = 35748^2 + 17172^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

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 13 ways as a sum of consecutive naturals, for example, 10383 + ... + 57038.

Almost surely, 2^1572797088 is an apocalyptic number.

1572797088 is a gapful number since it is divisible by the number (18) 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 1572797088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2321305749).

1572797088 is an abundant number, since it is smaller than the sum of its proper divisors (3069814410).

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

1572797088 is an frugal number, since it uses more digits than its factorization.

1572797088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67449 (or 67426 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 54.

The square root of 1572797088 is about 39658.5058720068. The cubic root of 1572797088 is about 1162.9406878629.

The spelling of 1572797088 in words is "one billion, five hundred seventy-two million, seven hundred ninety-seven thousand, eighty-eight".