4420040 has 16 divisors (see below), whose sum is σ = 9945180. Its totient is φ = 1768000.

The previous prime is 4420037. The next prime is 4420043. The reversal of 4420040 is 400244.

It is an interprime number because it is at equal distance from previous prime (4420037) and next prime (4420043).

It can be written as a sum of positive squares in 2 ways, for example, as 4351396 + 68644 = 2086^2 + 262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4419997 and 4420024.

It is not an unprimeable number, because it can be changed into a prime (4420043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55211 + ... + 55290.

Almost surely, 2^4420040 is an apocalyptic number.

4420040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4420040 is an abundant number, since it is smaller than the sum of its proper divisors (5525140).

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

4420040 is a wasteful number, since it uses less digits than its factorization.

4420040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110512 (or 110508 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4420040 is about 2102.3891171712. The cubic root of 4420040 is about 164.1126531174.

Adding to 4420040 its reverse (400244), we get a palindrome (4820284).

The spelling of 4420040 in words is "four million, four hundred twenty thousand, forty".