4891280 has 20 divisors (see below), whose sum is σ = 11372412. Its totient is φ = 1956480.

The previous prime is 4891253. The next prime is 4891283. The reversal of 4891280 is 821984.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3489424 + 1401856 = 1868^2 + 1184^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (4891283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30491 + ... + 30650.

Almost surely, 2^4891280 is an apocalyptic number.

4891280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4891280 is an abundant number, since it is smaller than the sum of its proper divisors (6481132).

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

4891280 is a wasteful number, since it uses less digits than its factorization.

4891280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61154 (or 61148 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 4891280 is about 2211.6238378169. The cubic root of 4891280 is about 169.7491108843.

The spelling of 4891280 in words is "four million, eight hundred ninety-one thousand, two hundred eighty".