4423988 has 6 divisors (see below), whose sum is σ = 7741986. Its totient is φ = 2211992.

The previous prime is 4423987. The next prime is 4423999. The reversal of 4423988 is 8893244.

It can be written as a sum of positive squares in only one way, i.e., 4376464 + 47524 = 2092^2 + 218^2 .

It is a d-powerful number, because it can be written as 4⁶ + 4¹¹ + 2¹⁷ + 3⁷ + 9⁵ + 8³ + 8⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4423987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552995 + ... + 553002.

It is an arithmetic number, because the mean of its divisors is an integer number (1290331).

Almost surely, 2^4423988 is an apocalyptic number.

It is an amenable number.

4423988 is a deficient number, since it is larger than the sum of its proper divisors (3317998).

4423988 is a wasteful number, since it uses less digits than its factorization.

4423988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106001 (or 1105999 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 4423988 is about 2103.3278394012. The cubic root of 4423988 is about 164.1615006348.

The spelling of 4423988 in words is "four million, four hundred twenty-three thousand, nine hundred eighty-eight".