4979920 has 40 divisors (see below), whose sum is σ = 12633120. Its totient is φ = 1810560.

The previous prime is 4979911. The next prime is 4979921. The reversal of 4979920 is 299794.

4979920 = T₃₅₅ + T₃₅₆ + ... + T₄₂₀.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4979921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1950 + ... + 3709.

It is an arithmetic number, because the mean of its divisors is an integer number (315828).

Almost surely, 2^4979920 is an apocalyptic number.

4979920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4979920 is an abundant number, since it is smaller than the sum of its proper divisors (7653200).

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

4979920 is a wasteful number, since it uses less digits than its factorization.

4979920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683 (or 5677 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 4979920 is about 2231.5734359416. The cubic root of 4979920 is about 170.7683787695.

The spelling of 4979920 in words is "four million, nine hundred seventy-nine thousand, nine hundred twenty".