4000513 has 4 divisors (see below), whose sum is σ = 4364208. Its totient is φ = 3636820.

The previous prime is 4000511. The next prime is 4000523. The reversal of 4000513 is 3150004.

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 not a de Polignac number, because 4000513 - 2¹ = 4000511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4000493 and 4000502.

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, 181831 + ... + 181852.

It is an arithmetic number, because the mean of its divisors is an integer number (1091052).

Almost surely, 2^4000513 is an apocalyptic number.

It is an amenable number.

4000513 is a deficient number, since it is larger than the sum of its proper divisors (363695).

4000513 is a wasteful number, since it uses less digits than its factorization.

4000513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363694.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 4000513 is about 2000.1282458882. The cubic root of 4000513 is about 158.7468910462.

Adding to 4000513 its reverse (3150004), we get a palindrome (7150517).

The spelling of 4000513 in words is "four million, five hundred thirteen", and thus it is an aban number.