4780640 has 24 divisors (see below), whose sum is σ = 11294640. Its totient is φ = 1912192.

The previous prime is 4780639. The next prime is 4780649. The reversal of 4780640 is 460874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14780 + ... + 15099.

It is an arithmetic number, because the mean of its divisors is an integer number (470610).

Almost surely, 2^4780640 is an apocalyptic number.

4780640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4780640 is an abundant number, since it is smaller than the sum of its proper divisors (6514000).

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

4780640 is a wasteful number, since it uses less digits than its factorization.

4780640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29894 (or 29886 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 4780640 is about 2186.4674706018. The cubic root of 4780640 is about 168.4594377970.

The spelling of 4780640 in words is "four million, seven hundred eighty thousand, six hundred forty".