1626306 has 32 divisors (see below), whose sum is σ = 3640896. Its totient is φ = 480000.

The previous prime is 1626301. The next prime is 1626311. The reversal of 1626306 is 6036261.

1626306 is a nontrivial binomial coefficient, being equal to C(1804, 2).

It is an interprime number because it is at equal distance from previous prime (1626301) and next prime (1626311).

It is not an unprimeable number, because it can be changed into a prime (1626301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2406 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (113778).

2^1626306 is an apocalyptic number.

1626306 is the 1803-rd triangular number and also the 902-nd hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1626306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820448).

1626306 is an abundant number, since it is smaller than the sum of its proper divisors (2014590).

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

1626306 is a wasteful number, since it uses less digits than its factorization.

1626306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1626306 is about 1275.2670308606. The cubic root of 1626306 is about 117.5982217788.

The spelling of 1626306 in words is "one million, six hundred twenty-six thousand, three hundred six".