3878429900 has 36 divisors (see below), whose sum is σ = 8558853240. Its totient is φ = 1525075200.

The previous prime is 3878429899. The next prime is 3878429903. The reversal of 3878429900 is 99248783.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (3878429903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322781 + ... + 334580.

Almost surely, 2^3878429900 is an apocalyptic number.

It is an amenable number.

3878429900 is an abundant number, since it is smaller than the sum of its proper divisors (4680423340).

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

3878429900 is a wasteful number, since it uses less digits than its factorization.

3878429900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657434 (or 657427 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 3878429900 is about 62277.0415161157. The cubic root of 3878429900 is about 1571.1536141123.

The spelling of 3878429900 in words is "three billion, eight hundred seventy-eight million, four hundred twenty-nine thousand, nine hundred".