4129641 has 6 divisors (see below), whose sum is σ = 5965050. Its totient is φ = 2753088.

The previous prime is 4129637. The next prime is 4129649. The reversal of 4129641 is 1469214.

4129641 is a `hidden beast` number, since 4 + 12 + 9 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2250000 + 1879641 = 1500^2 + 1371^2 .

It is not a de Polignac number, because 4129641 - 2² = 4129637 is a prime.

4129641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4129649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229416 + ... + 229433.

It is an arithmetic number, because the mean of its divisors is an integer number (994175).

Almost surely, 2^4129641 is an apocalyptic number.

It is an amenable number.

4129641 is a deficient number, since it is larger than the sum of its proper divisors (1835409).

4129641 is a wasteful number, since it uses less digits than its factorization.

4129641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458855 (or 458852 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 4129641 is about 2032.1518151949. The cubic root of 4129641 is about 160.4368400858.

The spelling of 4129641 in words is "four million, one hundred twenty-nine thousand, six hundred forty-one".