163490250 has 256 divisors, whose sum is σ = 539136000. Its totient is φ = 31968000.

The previous prime is 163490221. The next prime is 163490287. The reversal of 163490250 is 52094361.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1097176 + ... + 1097324.

It is an arithmetic number, because the mean of its divisors is an integer number (2106000).

Almost surely, 2^163490250 is an apocalyptic number.

163490250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 163490250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269568000).

163490250 is an abundant number, since it is smaller than the sum of its proper divisors (375645750).

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

163490250 is a wasteful number, since it uses less digits than its factorization.

163490250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 163490250 is about 12786.3305916905. The cubic root of 163490250 is about 546.8026609078.

The spelling of 163490250 in words is "one hundred sixty-three million, four hundred ninety thousand, two hundred fifty".