1532172768 has 384 divisors, whose sum is σ = 5160960000. Its totient is φ = 396264960.

The previous prime is 1532172757. The next prime is 1532172781. The reversal of 1532172768 is 8672712351.

It is a hoax number, since the sum of its digits (42) 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 (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19394553 + ... + 19394631.

It is an arithmetic number, because the mean of its divisors is an integer number (13440000).

Almost surely, 2^1532172768 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 1532172768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2580480000).

1532172768 is an abundant number, since it is smaller than the sum of its proper divisors (3628787232).

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

1532172768 is a wasteful number, since it uses less digits than its factorization.

1532172768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 141 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 1532172768 is about 39142.9785274447. The cubic root of 1532172768 is about 1152.8405564850.

The spelling of 1532172768 in words is "one billion, five hundred thirty-two million, one hundred seventy-two thousand, seven hundred sixty-eight".