4138641 has 24 divisors (see below), whose sum is σ = 6646560. Its totient is φ = 2544048.

The previous prime is 4138627. The next prime is 4138649. The reversal of 4138641 is 1468314.

4138641 is a `hidden beast` number, since 4 + 13 + 8 + 641 = 666.

It is not a de Polignac number, because 4138641 - 2⁵ = 4138609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4138649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4110 + ... + 5016.

It is an arithmetic number, because the mean of its divisors is an integer number (276940).

Almost surely, 2^4138641 is an apocalyptic number.

It is an amenable number.

4138641 is a deficient number, since it is larger than the sum of its proper divisors (2507919).

4138641 is a wasteful number, since it uses less digits than its factorization.

4138641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 923 counting only the distinct ones).

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

The square root of 4138641 is about 2034.3650114962. The cubic root of 4138641 is about 160.5533057283.

The spelling of 4138641 in words is "four million, one hundred thirty-eight thousand, six hundred forty-one".