372281728 has 128 divisors (see below), whose sum is σ = 943165440. Its totient is φ = 142387200.

The previous prime is 372281683. The next prime is 372281737. The reversal of 372281728 is 827182273.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360573 + ... + 361603.

It is an arithmetic number, because the mean of its divisors is an integer number (7368480).

Almost surely, 2^372281728 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 372281728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471582720).

372281728 is an abundant number, since it is smaller than the sum of its proper divisors (570883712).

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

372281728 is a wasteful number, since it uses less digits than its factorization.

372281728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1084 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 372281728 is about 19294.6035978975. The cubic root of 372281728 is about 719.3781461959.

The spelling of 372281728 in words is "three hundred seventy-two million, two hundred eighty-one thousand, seven hundred twenty-eight".