4921224 has 64 divisors (see below), whose sum is σ = 15344640. Its totient is φ = 1277760.

The previous prime is 4921201. The next prime is 4921243. The reversal of 4921224 is 4221294.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 4921194 and 4921203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517 + ... + 3179.

It is an arithmetic number, because the mean of its divisors is an integer number (239760).

Almost surely, 2^4921224 is an apocalyptic number.

4921224 is a gapful number since it is divisible by the number (44) 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 4921224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7672320).

4921224 is an abundant number, since it is smaller than the sum of its proper divisors (10423416).

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

4921224 is a wasteful number, since it uses less digits than its factorization.

4921224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690 (or 2686 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 4921224 is about 2218.3831950319. The cubic root of 4921224 is about 170.0948029466.

The spelling of 4921224 in words is "four million, nine hundred twenty-one thousand, two hundred twenty-four".