1664096 has 96 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 608256.

The previous prime is 1664083. The next prime is 1664101. The reversal of 1664096 is 6904661.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72341 + ... + 72363.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2^1664096 is an apocalyptic number.

1664096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1664096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177280).

1664096 is an abundant number, since it is smaller than the sum of its proper divisors (2690464).

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

1664096 is a wasteful number, since it uses less digits than its factorization.

1664096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1664096 is about 1289.9984496115. The cubic root of 1664096 is about 118.5021215356.

1664096 divided by its sum of digits (32) gives a triangular number (52003 = T₃₂₂).

The spelling of 1664096 in words is "one million, six hundred sixty-four thousand, ninety-six".