4000275 has 36 divisors (see below), whose sum is σ = 7486128. Its totient is φ = 2038080.

The previous prime is 4000273. The next prime is 4000277. The reversal of 4000275 is 5720004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4000273) and next prime (4000277).

It is not a de Polignac number, because 4000275 - 2¹ = 4000273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4000273) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4789 + ... + 5561.

It is an arithmetic number, because the mean of its divisors is an integer number (207948).

Almost surely, 2^4000275 is an apocalyptic number.

4000275 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4000275 is a deficient number, since it is larger than the sum of its proper divisors (3485853).

4000275 is a wasteful number, since it uses less digits than its factorization.

4000275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 4000275 is about 2000.0687488184. The cubic root of 4000275 is about 158.7437429075.

Adding to 4000275 its reverse (5720004), we get a palindrome (9720279).

The spelling of 4000275 in words is "four million, two hundred seventy-five", and thus it is an aban number.