3878164040 has 16 divisors (see below), whose sum is σ = 8725869180. Its totient is φ = 1551265600.

The previous prime is 3878164001. The next prime is 3878164057. The reversal of 3878164040 is 404618783.

It can be written as a sum of positive squares in 2 ways, for example, as 3868591204 + 9572836 = 62198^2 + 3094^2 .

It is a super-2 number, since 2×3878164040² = 30080312642298243200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 48477011 + ... + 48477090.

Almost surely, 2^3878164040 is an apocalyptic number.

It is an amenable number.

3878164040 is an abundant number, since it is smaller than the sum of its proper divisors (4847705140).

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

3878164040 is a wasteful number, since it uses less digits than its factorization.

3878164040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96954112 (or 96954108 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 3878164040 is about 62274.9069850771. The cubic root of 3878164040 is about 1571.1177132920.

The spelling of 3878164040 in words is "three billion, eight hundred seventy-eight million, one hundred sixty-four thousand, forty".