4921280 has 112 divisors (see below), whose sum is σ = 14508480. Its totient is φ = 1557504.

The previous prime is 4921261. The next prime is 4921283. The reversal of 4921280 is 821294.

4921280 = T₁₂₀ + T₁₂₁ + ... + T₃₁₄.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4921283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378554 + ... + 378566.

It is an arithmetic number, because the mean of its divisors is an integer number (129540).

Almost surely, 2^4921280 is an apocalyptic number.

4921280 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 4921280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7254240).

4921280 is an abundant number, since it is smaller than the sum of its proper divisors (9587200).

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

4921280 is an equidigital number, since it uses as much as digits as its factorization.

4921280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4921280 is about 2218.3958168010. The cubic root of 4921280 is about 170.0954481298.

The spelling of 4921280 in words is "four million, nine hundred twenty-one thousand, two hundred eighty".