1423660 has 24 divisors (see below), whose sum is σ = 3417120. Its totient is φ = 488064.

The previous prime is 1423637. The next prime is 1423663. The reversal of 1423660 is 663241.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (1423663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4945 + ... + 5224.

It is an arithmetic number, because the mean of its divisors is an integer number (142380).

2^1423660 is an apocalyptic number.

1423660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423660 is an abundant number, since it is smaller than the sum of its proper divisors (1993460).

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

1423660 is a wasteful number, since it uses less digits than its factorization.

1423660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10185 (or 10183 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1423660 is about 1193.1722423858. The cubic root of 1423660 is about 112.4955718422.

The spelling of 1423660 in words is "one million, four hundred twenty-three thousand, six hundred sixty".