4497920 has 80 divisors (see below), whose sum is σ = 12374208. Its totient is φ = 1536000.

The previous prime is 4497919. The next prime is 4497923. The reversal of 4497920 is 297944.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4497923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17795 + ... + 18045.

Almost surely, 2^4497920 is an apocalyptic number.

4497920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6187104).

4497920 is an abundant number, since it is smaller than the sum of its proper divisors (7876288).

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

4497920 is an equidigital number, since it uses as much as digits as its factorization.

4497920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 4497920 is about 2120.8300261926. The cubic root of 4497920 is about 165.0709214554.

The spelling of 4497920 in words is "four million, four hundred ninety-seven thousand, nine hundred twenty".