4244420 has 24 divisors (see below), whose sum is σ = 9301824. Its totient is φ = 1623776.

The previous prime is 4244417. The next prime is 4244423. The reversal of 4244420 is 244424.

It is an interprime number because it is at equal distance from previous prime (4244417) and next prime (4244423).

It is a super-2 number, since 2×4244420² = 36030202272800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4244392 and 4244401.

It is not an unprimeable number, because it can be changed into a prime (4244423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4154 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (387576).

Almost surely, 2^4244420 is an apocalyptic number.

It is an amenable number.

4244420 is an abundant number, since it is smaller than the sum of its proper divisors (5057404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4244420 is a wasteful number, since it uses less digits than its factorization.

4244420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259 (or 9257 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4244420 is about 2060.1990195124. The cubic root of 4244420 is about 161.9096686875.

Adding to 4244420 its reverse (244424), we get a palindrome (4488844).

It can be divided in two parts, 4244 and 420, that added together give a palindrome (4664).

The spelling of 4244420 in words is "four million, two hundred forty-four thousand, four hundred twenty".