383201928 has 60 divisors (see below), whose sum is σ = 1074717765. Its totient is φ = 127567872.

The previous prime is 383201927. The next prime is 383201941. The reversal of 383201928 is 829102383.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 378613764 + 4588164 = 19458^2 + 2142^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=13842.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 383201892 and 383201901.

It is not an unprimeable number, because it can be changed into a prime (383201927) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 497928 + ... + 498696.

Almost surely, 2^383201928 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 383201928

383201928 is an abundant number, since it is smaller than the sum of its proper divisors (691515837).

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

383201928 is an frugal number, since it uses more digits than its factorization.

383201928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556 (or 774 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 383201928 is about 19575.5441303684. The cubic root of 383201928 is about 726.3443486333.

The spelling of 383201928 in words is "three hundred eighty-three million, two hundred one thousand, nine hundred twenty-eight".