1660064 has 24 divisors (see below), whose sum is σ = 3735648. Its totient is φ = 711360.

The previous prime is 1660063. The next prime is 1660069. The reversal of 1660064 is 4600661.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1660063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3482 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (155652).

2^1660064 is an apocalyptic number.

1660064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1660064 is an abundant number, since it is smaller than the sum of its proper divisors (2075584).

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

1660064 is an equidigital number, since it uses as much as digits as its factorization.

1660064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7428 (or 7420 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1660064 is about 1288.4347092499. The cubic root of 1660064 is about 118.4063364030.

The spelling of 1660064 in words is "one million, six hundred sixty thousand, sixty-four".