4420002155 has 4 divisors (see below), whose sum is σ = 5304002592. Its totient is φ = 3536001720.

The previous prime is 4420002133. The next prime is 4420002173. The reversal of 4420002155 is 5512000244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4420002155 - 2⁸ = 4420001899 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 4420002155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442000211 + ... + 442000220.

It is an arithmetic number, because the mean of its divisors is an integer number (1326000648).

Almost surely, 2^4420002155 is an apocalyptic number.

4420002155 is a deficient number, since it is larger than the sum of its proper divisors (884000437).

4420002155 is an equidigital number, since it uses as much as digits as its factorization.

4420002155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884000436.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 4420002155 is about 66483.0967615077. The cubic root of 4420002155 is about 1641.1218473087.

Adding to 4420002155 its reverse (5512000244), we get a palindrome (9932002399).

The spelling of 4420002155 in words is "four billion, four hundred twenty million, two thousand, one hundred fifty-five".