3878100340 has 24 divisors (see below), whose sum is σ = 8333408160. Its totient is φ = 1515164448.

The previous prime is 3878100337. The next prime is 3878100451. The reversal of 3878100340 is 430018783.

It is a junction number, because it is equal to n+sod(n) for n = 3878100296 and 3878100305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2253850 + ... + 2255569.

It is an arithmetic number, because the mean of its divisors is an integer number (347225340).

Almost surely, 2^3878100340 is an apocalyptic number.

It is an amenable number.

3878100340 is an abundant number, since it is smaller than the sum of its proper divisors (4455307820).

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

3878100340 is a wasteful number, since it uses less digits than its factorization.

3878100340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509471 (or 4509469 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 3878100340 is about 62274.3955410247. The cubic root of 3878100340 is about 1571.1091112194.

The spelling of 3878100340 in words is "three billion, eight hundred seventy-eight million, one hundred thousand, three hundred forty".