4090071 has 8 divisors (see below), whose sum is σ = 5463664. Its totient is φ = 2721600.

The previous prime is 4090069. The next prime is 4090103. The reversal of 4090071 is 1700904.

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

It is not a de Polignac number, because 4090071 - 2¹ = 4090069 is a prime.

It is a Duffinian number.

4090071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090001) 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, 1371 + ... + 3171.

It is an arithmetic number, because the mean of its divisors is an integer number (682958).

Almost surely, 2^4090071 is an apocalyptic number.

4090071 is a deficient number, since it is larger than the sum of its proper divisors (1373593).

4090071 is a wasteful number, since it uses less digits than its factorization.

4090071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 4090071 is about 2022.3923951598. The cubic root of 4090071 is about 159.9227621997.

Adding to 4090071 its reverse (1700904), we get a palindrome (5790975).

The spelling of 4090071 in words is "four million, ninety thousand, seventy-one".