3845138 has 12 divisors (see below), whose sum is σ = 6340110. Its totient is φ = 1747680.

The previous prime is 3845123. The next prime is 3845143. The reversal of 3845138 is 8315483.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3621409 + 223729 = 1903^2 + 473^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7703 + ... + 8186.

Almost surely, 2^3845138 is an apocalyptic number.

3845138 is a deficient number, since it is larger than the sum of its proper divisors (2494972).

3845138 is a wasteful number, since it uses less digits than its factorization.

3845138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15913 (or 15902 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 3845138 is about 1960.9023433103. The cubic root of 3845138 is about 156.6645168459.

The spelling of 3845138 in words is "three million, eight hundred forty-five thousand, one hundred thirty-eight".