4985440 has 24 divisors (see below), whose sum is σ = 11778480. Its totient is φ = 1994112.

The previous prime is 4985423. The next prime is 4985443. The reversal of 4985440 is 445894.

It is a super-2 number, since 2×4985440² = 49709223987200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4985396 and 4985405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4985443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15420 + ... + 15739.

It is an arithmetic number, because the mean of its divisors is an integer number (490770).

Almost surely, 2^4985440 is an apocalyptic number.

4985440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4985440 is an abundant number, since it is smaller than the sum of its proper divisors (6793040).

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

4985440 is a wasteful number, since it uses less digits than its factorization.

4985440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31174 (or 31166 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 4985440 is about 2232.8098889068. The cubic root of 4985440 is about 170.8314516284.

It can be divided in two parts, 49854 and 40, that added together give a palindrome (49894).

The spelling of 4985440 in words is "four million, nine hundred eighty-five thousand, four hundred forty".