4906640 has 20 divisors (see below), whose sum is σ = 11408124. Its totient is φ = 1962624.

The previous prime is 4906637. The next prime is 4906651. The reversal of 4906640 is 466094.

It can be written as a sum of positive squares in 2 ways, for example, as 3625216 + 1281424 = 1904^2 + 1132^2 .

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

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 30587 + ... + 30746.

Almost surely, 2^4906640 is an apocalyptic number.

4906640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4906640 is an abundant number, since it is smaller than the sum of its proper divisors (6501484).

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

4906640 is a wasteful number, since it uses less digits than its factorization.

4906640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61346 (or 61340 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 4906640 is about 2215.0936774773. The cubic root of 4906640 is about 169.9266119219.

The spelling of 4906640 in words is "four million, nine hundred six thousand, six hundred forty".