4249920 has 112 divisors (see below), whose sum is σ = 14264640. Its totient is φ = 1069056.

The previous prime is 4249913. The next prime is 4249943. The reversal of 4249920 is 299424.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18124 + ... + 18356.

Almost surely, 2^4249920 is an apocalyptic number.

4249920 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 4249920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7132320).

4249920 is an abundant number, since it is smaller than the sum of its proper divisors (10014720).

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

4249920 is a wasteful number, since it uses less digits than its factorization.

4249920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 4249920 is about 2061.5334098675. The cubic root of 4249920 is about 161.9795737087.

The spelling of 4249920 in words is "four million, two hundred forty-nine thousand, nine hundred twenty".