2381604128 has 18 divisors (see below), whose sum is σ = 4689326691. Its totient is φ = 1190664032.

The previous prime is 2381604119. The next prime is 2381604217. The reversal of 2381604128 is 8214061832.

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 only one way, i.e., 1190802064 + 1190802064 = 34508^2 + 34508^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=34508.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 271751 + ... + 280377.

Almost surely, 2^2381604128 is an apocalyptic number.

It is an amenable number.

2381604128 is a deficient number, since it is larger than the sum of its proper divisors (2307722563).

2381604128 is an frugal number, since it uses more digits than its factorization.

2381604128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17264 (or 8629 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 2381604128 is about 48801.6816103708. The cubic root of 2381604128 is about 1335.4363441541.

Multiplying 2381604128 by its product of nonzero digits (18432), we get a square (43897727287296 = 6625536²).

The spelling of 2381604128 in words is "two billion, three hundred eighty-one million, six hundred four thousand, one hundred twenty-eight".