4020413 has 4 divisors (see below), whose sum is σ = 4024608. Its totient is φ = 4016220.

The previous prime is 4020409. The next prime is 4020431. The reversal of 4020413 is 3140204.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4020413 - 2² = 4020409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020433) 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, 128 + ... + 2838.

It is an arithmetic number, because the mean of its divisors is an integer number (1006152).

Almost surely, 2^4020413 is an apocalyptic number.

It is an amenable number.

4020413 is a deficient number, since it is larger than the sum of its proper divisors (4195).

4020413 is a wasteful number, since it uses less digits than its factorization.

4020413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4020413 is about 2005.0967557702. The cubic root of 4020413 is about 159.0096772982.

Adding to 4020413 its reverse (3140204), we get a palindrome (7160617).

The spelling of 4020413 in words is "four million, twenty thousand, four hundred thirteen".