4678440 has 64 divisors (see below), whose sum is σ = 15120000. Its totient is φ = 1151232.

The previous prime is 4678397. The next prime is 4678477. The reversal of 4678440 is 448764.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61 + ... + 3059.

It is an arithmetic number, because the mean of its divisors is an integer number (236250).

Almost surely, 2^4678440 is an apocalyptic number.

4678440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4678440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7560000).

4678440 is an abundant number, since it is smaller than the sum of its proper divisors (10441560).

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

4678440 is a wasteful number, since it uses less digits than its factorization.

4678440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026 (or 3022 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 4678440 is about 2162.9701800996. The cubic root of 4678440 is about 167.2503446450.

The spelling of 4678440 in words is "four million, six hundred seventy-eight thousand, four hundred forty".