1600668 has 24 divisors (see below), whose sum is σ = 4150160. Its totient is φ = 533520.

The previous prime is 1600663. The next prime is 1600691. The reversal of 1600668 is 8660061.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7303 + ... + 7518.

2^1600668 is an apocalyptic number.

1600668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1600668 is an abundant number, since it is smaller than the sum of its proper divisors (2549492).

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

1600668 is a wasteful number, since it uses less digits than its factorization.

1600668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14834 (or 14826 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1600668 is about 1265.1750866975. The cubic root of 1600668 is about 116.9769842959.

The spelling of 1600668 in words is "one million, six hundred thousand, six hundred sixty-eight".