3128238 has 24 divisors (see below), whose sum is σ = 7177248. Its totient is φ = 981312.

The previous prime is 3128233. The next prime is 3128249. The reversal of 3128238 is 8328213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4806 + ... + 5417.

It is an arithmetic number, because the mean of its divisors is an integer number (299052).

Almost surely, 2^3128238 is an apocalyptic number.

3128238 is an abundant number, since it is smaller than the sum of its proper divisors (4049010).

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

3128238 is a wasteful number, since it uses less digits than its factorization.

3128238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10248 (or 10245 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 3128238 is about 1768.6825605518. The cubic root of 3128238 is about 146.2513653171.

The spelling of 3128238 in words is "three million, one hundred twenty-eight thousand, two hundred thirty-eight".