3878460 has 72 divisors (see below), whose sum is σ = 12186720. Its totient is φ = 997248.

The previous prime is 3878449. The next prime is 3878491. The reversal of 3878460 is 648783.

3878460 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4849 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (169260).

Almost surely, 2^3878460 is an apocalyptic number.

3878460 is a gapful number since it is divisible by the number (30) 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 3878460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6093360).

3878460 is an abundant number, since it is smaller than the sum of its proper divisors (8308260).

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

3878460 is a wasteful number, since it uses less digits than its factorization.

3878460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 3878460 is about 1969.3806132894. The cubic root of 3878460 is about 157.1157678609.

The spelling of 3878460 in words is "three million, eight hundred seventy-eight thousand, four hundred sixty".