4003012 has 24 divisors (see below), whose sum is σ = 7874496. Its totient is φ = 1766688.

The previous prime is 4003001. The next prime is 4003019. The reversal of 4003012 is 2103004.

It is a self number, because there is not a number n which added to its sum of digits gives 4003012.

It is not an unprimeable number, because it can be changed into a prime (4003019) 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, 478 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (328104).

Almost surely, 2^4003012 is an apocalyptic number.

It is an amenable number.

4003012 is a deficient number, since it is larger than the sum of its proper divisors (3871484).

4003012 is a wasteful number, since it uses less digits than its factorization.

4003012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387 (or 3385 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 4003012 is about 2000.7528583011. The cubic root of 4003012 is about 158.7799389666.

Adding to 4003012 its reverse (2103004), we get a palindrome (6106016).

The spelling of 4003012 in words is "four million, three thousand, twelve".