3838945 has 16 divisors (see below), whose sum is σ = 5064192. Its totient is φ = 2770560.

The previous prime is 3838937. The next prime is 3838951. The reversal of 3838945 is 5498383.

It is not a de Polignac number, because 3838945 - 2³ = 3838937 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3838898 and 3838907.

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, 12109 + ... + 12421.

It is an arithmetic number, because the mean of its divisors is an integer number (316512).

Almost surely, 2^3838945 is an apocalyptic number.

It is an amenable number.

3838945 is a deficient number, since it is larger than the sum of its proper divisors (1225247).

3838945 is a wasteful number, since it uses less digits than its factorization.

3838945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its digits is 103680, while the sum is 40.

The square root of 3838945 is about 1959.3225870183. The cubic root of 3838945 is about 156.5803634118.

It can be divided in two parts, 38 and 38945, that added together give a palindrome (38983).

The spelling of 3838945 in words is "three million, eight hundred thirty-eight thousand, nine hundred forty-five".