3820238 has 4 divisors (see below), whose sum is σ = 5730360. Its totient is φ = 1910118.

The previous prime is 3820237. The next prime is 3820253. The reversal of 3820238 is 8320283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8320283 = 733 ⋅11351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955058 + ... + 955061.

It is an arithmetic number, because the mean of its divisors is an integer number (1432590).

Almost surely, 2^3820238 is an apocalyptic number.

3820238 is a deficient number, since it is larger than the sum of its proper divisors (1910122).

3820238 is a wasteful number, since it uses less digits than its factorization.

3820238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910121.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 3820238 is about 1954.5429133176. The cubic root of 3820238 is about 156.3256128966.

The spelling of 3820238 in words is "three million, eight hundred twenty thousand, two hundred thirty-eight".