4190681 has 4 divisors (see below), whose sum is σ = 4571664. Its totient is φ = 3809700.

The previous prime is 4190677. The next prime is 4190689. The reversal of 4190681 is 1860914.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4190681 - 2² = 4190677 is a prime.

It is a super-2 number, since 2×4190681² = 35123614487522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4190689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190475 + ... + 190496.

It is an arithmetic number, because the mean of its divisors is an integer number (1142916).

Almost surely, 2^4190681 is an apocalyptic number.

It is an amenable number.

4190681 is a deficient number, since it is larger than the sum of its proper divisors (380983).

4190681 is a wasteful number, since it uses less digits than its factorization.

4190681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380982.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 4190681 is about 2047.1152874228. The cubic root of 4190681 is about 161.2234465420.

The spelling of 4190681 in words is "four million, one hundred ninety thousand, six hundred eighty-one".