3854891250 has 480 divisors, whose sum is σ = 12963350400. Its totient is φ = 857304000.

The previous prime is 3854891239. The next prime is 3854891251. The reversal of 3854891250 is 521984583.

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

It is a junction number, because it is equal to n+sod(n) for n = 3854891196 and 3854891205.

It is not an unprimeable number, because it can be changed into a prime (3854891251) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 104186232 + ... + 104186268.

It is an arithmetic number, because the mean of its divisors is an integer number (27006980).

Almost surely, 2^3854891250 is an apocalyptic number.

3854891250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3854891250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6481675200).

3854891250 is an abundant number, since it is smaller than the sum of its proper divisors (9108459150).

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

3854891250 is an frugal number, since it uses more digits than its factorization.

3854891250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 3854891250 is about 62087.7705349451. The cubic root of 3854891250 is about 1567.9686563675.

The spelling of 3854891250 in words is "three billion, eight hundred fifty-four million, eight hundred ninety-one thousand, two hundred fifty".