4921408 has 28 divisors (see below), whose sum is σ = 9857232. Its totient is φ = 2437760.

The previous prime is 4921403. The next prime is 4921409. The reversal of 4921408 is 8041294.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4921403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8091 + ... + 8677.

It is an arithmetic number, because the mean of its divisors is an integer number (352044).

Almost surely, 2^4921408 is an apocalyptic number.

It is an amenable number.

4921408 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

4921408 is a wasteful number, since it uses less digits than its factorization.

4921408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4921408 is about 2218.4246662891. The cubic root of 4921408 is about 170.0969228158.

It can be divided in two parts, 4921 and 408, that added together give a square (5329 = 73²).

The spelling of 4921408 in words is "four million, nine hundred twenty-one thousand, four hundred eight".