164490750 has 80 divisors (see below), whose sum is σ = 460045872. Its totient is φ = 43858800.

The previous prime is 164490749. The next prime is 164490751. The reversal of 164490750 is 57094461.

164490750 is a `hidden beast` number, since 1 + 644 + 9 + 0 + 7 + 5 + 0 = 666.

164490750 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164490749) and next prime (164490751).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164490751) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16189 + ... + 24311.

Almost surely, 2^164490750 is an apocalyptic number.

164490750 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 164490750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230022936).

164490750 is an abundant number, since it is smaller than the sum of its proper divisors (295555122).

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

164490750 is an equidigital number, since it uses as much as digits as its factorization.

164490750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8152 (or 8133 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 164490750 is about 12825.3947307675. The cubic root of 164490750 is about 547.9158034816.

The spelling of 164490750 in words is "one hundred sixty-four million, four hundred ninety thousand, seven hundred fifty".