4081641 has 8 divisors (see below), whose sum is σ = 5482464. Its totient is φ = 2700960.

The previous prime is 4081613. The next prime is 4081657. The reversal of 4081641 is 1461804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4081641 - 2¹³ = 4073449 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4081601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4555 + ... + 5376.

It is an arithmetic number, because the mean of its divisors is an integer number (685308).

Almost surely, 2^4081641 is an apocalyptic number.

It is an amenable number.

4081641 is a deficient number, since it is larger than the sum of its proper divisors (1400823).

4081641 is a wasteful number, since it uses less digits than its factorization.

4081641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10071.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 4081641 is about 2020.3071548653. The cubic root of 4081641 is about 159.8128149505.

The spelling of 4081641 in words is "four million, eighty-one thousand, six hundred forty-one".