1660412 has 24 divisors (see below), whose sum is σ = 3217536. Its totient is φ = 744768.

The previous prime is 1660411. The next prime is 1660423. The reversal of 1660412 is 2140661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493 + ... + 2355.

It is an arithmetic number, because the mean of its divisors is an integer number (134064).

2^1660412 is an apocalyptic number.

It is an amenable number.

1660412 is a deficient number, since it is larger than the sum of its proper divisors (1557124).

1660412 is a wasteful number, since it uses less digits than its factorization.

1660412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1660412 is about 1288.5697497613. The cubic root of 1660412 is about 118.4146096837.

Subtracting 1660412 from its reverse (2140661), we obtain a square (480249 = 693²).

The spelling of 1660412 in words is "one million, six hundred sixty thousand, four hundred twelve".