3858397200 has 720 divisors, whose sum is σ = 16722322560. Its totient is φ = 840913920.

The previous prime is 3858397189. The next prime is 3858397229. The reversal of 3858397200 is 27938583.

3858397200 is a `hidden beast` number, since 3 + 8 + 58 + 397 + 200 = 666.

3858397200 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12171442 + ... + 12171758.

It is an arithmetic number, because the mean of its divisors is an integer number (23225448).

Almost surely, 2^3858397200 is an apocalyptic number.

3858397200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3858397200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8361161280).

3858397200 is an abundant number, since it is smaller than the sum of its proper divisors (12863925360).

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

3858397200 is a wasteful number, since it uses less digits than its factorization.

3858397200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 3858397200 is about 62115.9979393393. The cubic root of 3858397200 is about 1568.4438581875.

The spelling of 3858397200 in words is "three billion, eight hundred fifty-eight million, three hundred ninety-seven thousand, two hundred".