1640014 has 8 divisors (see below), whose sum is σ = 2482920. Its totient is φ = 812376.

The previous prime is 1639999. The next prime is 1640017. The reversal of 1640014 is 4100461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1640014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3544 + ... + 3979.

It is an arithmetic number, because the mean of its divisors is an integer number (310365).

2^1640014 is an apocalyptic number.

1640014 is a deficient number, since it is larger than the sum of its proper divisors (842906).

1640014 is a wasteful number, since it uses less digits than its factorization.

1640014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1640014 is about 1280.6303135566. The cubic root of 1640014 is about 117.9277063641.

Adding to 1640014 its reverse (4100461), we get a palindrome (5740475).

The spelling of 1640014 in words is "one million, six hundred forty thousand, fourteen".