372721328 has 80 divisors (see below), whose sum is σ = 919941120. Its totient is φ = 142414848.

The previous prime is 372721319. The next prime is 372721337. The reversal of 372721328 is 823127273.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (372721319) and next prime (372721337).

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, 31025 + ... + 41327.

It is an arithmetic number, because the mean of its divisors is an integer number (11499264).

Almost surely, 2^372721328 is an apocalyptic number.

372721328 is a gapful number since it is divisible by the number (38) 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 372721328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459970560).

372721328 is an abundant number, since it is smaller than the sum of its proper divisors (547219792).

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

372721328 is a wasteful number, since it uses less digits than its factorization.

372721328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10354 (or 10348 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 372721328 is about 19305.9920232036. The cubic root of 372721328 is about 719.6611883264.

The spelling of 372721328 in words is "three hundred seventy-two million, seven hundred twenty-one thousand, three hundred twenty-eight".