4020755 has 8 divisors (see below), whose sum is σ = 5108832. Its totient is φ = 3027328.

The previous prime is 4020749. The next prime is 4020773. The reversal of 4020755 is 5570204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4020755 - 2⁶ = 4020691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4020755.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23567 + ... + 23736.

It is an arithmetic number, because the mean of its divisors is an integer number (638604).

Almost surely, 2^4020755 is an apocalyptic number.

4020755 is a deficient number, since it is larger than the sum of its proper divisors (1088077).

4020755 is a wasteful number, since it uses less digits than its factorization.

4020755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47325.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 4020755 is about 2005.1820366241. The cubic root of 4020755 is about 159.0141859368.

Adding to 4020755 its reverse (5570204), we get a palindrome (9590959).

The spelling of 4020755 in words is "four million, twenty thousand, seven hundred fifty-five".