1966734 has 96 divisors (see below), whose sum is σ = 5617920. Its totient is φ = 498960.

The previous prime is 1966697. The next prime is 1966787. The reversal of 1966734 is 4376691.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45717 + ... + 45759.

It is an arithmetic number, because the mean of its divisors is an integer number (58520).

2^1966734 is an apocalyptic number.

1966734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1966734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2808960).

1966734 is an abundant number, since it is smaller than the sum of its proper divisors (3651186).

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

1966734 is a wasteful number, since it uses less digits than its factorization.

1966734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 66 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 1966734 is about 1402.4029378178. The cubic root of 1966734 is about 125.2896536211.

It can be divided in two parts, 19667 and 34, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 1966734 in words is "one million, nine hundred sixty-six thousand, seven hundred thirty-four".