4020913 has 16 divisors (see below), whose sum is σ = 4641280. Its totient is φ = 3452544.

The previous prime is 4020889. The next prime is 4020923. The reversal of 4020913 is 3190204.

It is a cyclic number.

It is not a de Polignac number, because 4020913 - 2¹³ = 4012721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

4020913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4020923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17920 + ... + 18142.

It is an arithmetic number, because the mean of its divisors is an integer number (290080).

Almost surely, 2^4020913 is an apocalyptic number.

It is an amenable number.

4020913 is a deficient number, since it is larger than the sum of its proper divisors (620367).

4020913 is a wasteful number, since it uses less digits than its factorization.

4020913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 4020913 is about 2005.2214341563. The cubic root of 4020913 is about 159.0162687888.

The spelling of 4020913 in words is "four million, twenty thousand, nine hundred thirteen".