2004078156 has 24 divisors (see below), whose sum is σ = 4704188160. Its totient is φ = 664025232.

The previous prime is 2004078137. The next prime is 2004078169. The reversal of 2004078156 is 6518704002.

2004078156 is a modest number, since divided by 78156 gives 2004 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498016 + ... + 502023.

It is an arithmetic number, because the mean of its divisors is an integer number (196007840).

Almost surely, 2^2004078156 is an apocalyptic number.

It is an amenable number.

2004078156 is an abundant number, since it is smaller than the sum of its proper divisors (2700110004).

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

2004078156 is a wasteful number, since it uses less digits than its factorization.

2004078156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000213 (or 1000211 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2004078156 is about 44766.9315008299. The cubic root of 2004078156 is about 1260.7768275905.

The spelling of 2004078156 in words is "two billion, four million, seventy-eight thousand, one hundred fifty-six".