394868250 has 256 divisors, whose sum is σ = 1281346560. Its totient is φ = 88128000.

The previous prime is 394868249. The next prime is 394868251. The reversal of 394868250 is 52868493.

394868250 is a `hidden beast` number, since 394 + 8 + 6 + 8 + 250 = 666.

It is an interprime number because it is at equal distance from previous prime (394868249) and next prime (394868251).

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 = 394868196 and 394868205.

It is not an unprimeable number, because it can be changed into a prime (394868251) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2882182 + ... + 2882318.

It is an arithmetic number, because the mean of its divisors is an integer number (5005260).

Almost surely, 2^394868250 is an apocalyptic number.

394868250 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 394868250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640673280).

394868250 is an abundant number, since it is smaller than the sum of its proper divisors (886478310).

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

394868250 is a wasteful number, since it uses less digits than its factorization.

394868250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 394868250 is about 19871.2921069567. The cubic root of 394868250 is about 733.6418066335.

The spelling of 394868250 in words is "three hundred ninety-four million, eight hundred sixty-eight thousand, two hundred fifty".