1630326 has 16 divisors (see below), whose sum is σ = 3282624. Its totient is φ = 539784.

The previous prime is 1630303. The next prime is 1630357. The reversal of 1630326 is 6230361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145 + ... + 1811.

It is an arithmetic number, because the mean of its divisors is an integer number (205164).

2^1630326 is an apocalyptic number.

1630326 is an abundant number, since it is smaller than the sum of its proper divisors (1652298).

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

1630326 is a wasteful number, since it uses less digits than its factorization.

1630326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1630326 is about 1276.8421985508. The cubic root of 1630326 is about 117.6950374798.

Adding to 1630326 its reverse (6230361), we get a palindrome (7860687).

The spelling of 1630326 in words is "one million, six hundred thirty thousand, three hundred twenty-six".