4786640 has 20 divisors (see below), whose sum is σ = 11129124. Its totient is φ = 1914624.

The previous prime is 4786633. The next prime is 4786657. The reversal of 4786640 is 466874.

It can be written as a sum of positive squares in 2 ways, for example, as 3356224 + 1430416 = 1832^2 + 1196^2 .

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

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4786640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29837 + ... + 29996.

Almost surely, 2^4786640 is an apocalyptic number.

4786640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4786640 is an abundant number, since it is smaller than the sum of its proper divisors (6342484).

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

4786640 is a wasteful number, since it uses less digits than its factorization.

4786640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59846 (or 59840 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 4786640 is about 2187.8391165714. The cubic root of 4786640 is about 168.5298840180.

The spelling of 4786640 in words is "four million, seven hundred eighty-six thousand, six hundred forty".