4000512 has 36 divisors (see below), whose sum is σ = 10649240. Its totient is φ = 1333248.

The previous prime is 4000511. The next prime is 4000523. The reversal of 4000512 is 2150004.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (4000511) 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, 1837 + ... + 3372.

Almost surely, 2^4000512 is an apocalyptic number.

It is an amenable number.

4000512 is an abundant number, since it is smaller than the sum of its proper divisors (6648728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4000512 is an equidigital number, since it uses as much as digits as its factorization.

4000512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5228 (or 5214 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 4000512 is about 2000.1279959043. The cubic root of 4000512 is about 158.7468778190.

Adding to 4000512 its reverse (2150004), we get a palindrome (6150516).

The spelling of 4000512 in words is "four million, five hundred twelve", and thus it is an aban number.