1424664 has 48 divisors (see below), whose sum is σ = 3949920. Its totient is φ = 463680.

The previous prime is 1424659. The next prime is 1424681. The reversal of 1424664 is 4664241.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3174 + ... + 3594.

It is an arithmetic number, because the mean of its divisors is an integer number (82290).

2^1424664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1424664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1974960).

1424664 is an abundant number, since it is smaller than the sum of its proper divisors (2525256).

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

1424664 is a wasteful number, since it uses less digits than its factorization.

1424664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 473 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1424664 is about 1193.5928954212. The cubic root of 1424664 is about 112.5220105082.

The spelling of 1424664 in words is "one million, four hundred twenty-four thousand, six hundred sixty-four".