1664242362 has 48 divisors (see below), whose sum is σ = 3749447520. Its totient is φ = 553258512.

The previous prime is 1664242339. The next prime is 1664242381. The reversal of 1664242362 is 2632424661.

1664242362 is a `hidden beast` number, since 1 + 6 + 642 + 4 + 2 + 3 + 6 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184653 + ... + 193455.

It is an arithmetic number, because the mean of its divisors is an integer number (78113490).

Almost surely, 2^1664242362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1664242362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1874723760).

1664242362 is an abundant number, since it is smaller than the sum of its proper divisors (2085205158).

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

1664242362 is an equidigital number, since it uses as much as digits as its factorization.

1664242362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209 (or 9197 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 1664242362 is about 40795.1266942511. The cubic root of 1664242362 is about 1185.0559563386.

The spelling of 1664242362 in words is "one billion, six hundred sixty-four million, two hundred forty-two thousand, three hundred sixty-two".