4911920 has 40 divisors (see below), whose sum is σ = 12301296. Its totient is φ = 1813248.

The previous prime is 4911901. The next prime is 4911931. The reversal of 4911920 is 291194.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a self number, because there is not a number n which added to its sum of digits gives 4911920.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322 + ... + 3401.

Almost surely, 2^4911920 is an apocalyptic number.

4911920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4911920 is an abundant number, since it is smaller than the sum of its proper divisors (7389376).

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

4911920 is a wasteful number, since it uses less digits than its factorization.

4911920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749 (or 4743 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 4911920 is about 2216.2851802058. The cubic root of 4911920 is about 169.9875423397.

The spelling of 4911920 in words is "four million, nine hundred eleven thousand, nine hundred twenty".