3858400055 has 8 divisors (see below), whose sum is σ = 4653348000. Its totient is φ = 3071208096.

The previous prime is 3858400009. The next prime is 3858400057. The reversal of 3858400055 is 5500048583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3858400055 - 2²⁴ = 3841622839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3858399991 and 3858400018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858400057) by changing a digit.

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, 1937900 + ... + 1939889.

It is an arithmetic number, because the mean of its divisors is an integer number (581668500).

Almost surely, 2^3858400055 is an apocalyptic number.

3858400055 is a deficient number, since it is larger than the sum of its proper divisors (794947945).

3858400055 is a wasteful number, since it uses less digits than its factorization.

3858400055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877993.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 3858400055 is about 62116.0209205322. The cubic root of 3858400055 is about 1568.4442450412. Note that the first 3 decimals are identical.

The spelling of 3858400055 in words is "three billion, eight hundred fifty-eight million, four hundred thousand, fifty-five".