1966374 has 24 divisors (see below), whose sum is σ = 4408560. Its totient is φ = 632688.

The previous prime is 1966343. The next prime is 1966381. The reversal of 1966374 is 4736691.

1966374 is a `hidden beast` number, since 19 + 6 + 637 + 4 = 666.

It is a d-powerful number, because it can be written as 1 + 9² + 6⁷ + 6⁸ + 3⁵ + 7⁴ + 4⁶ .

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 11 ways as a sum of consecutive naturals, for example, 1362 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (183690).

2^1966374 is an apocalyptic number.

1966374 is an abundant number, since it is smaller than the sum of its proper divisors (2442186).

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

1966374 is a wasteful number, since it uses less digits than its factorization.

1966374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804 (or 3801 counting only the distinct ones).

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

The square root of 1966374 is about 1402.2745808150. The cubic root of 1966374 is about 125.2820086240.

The spelling of 1966374 in words is "one million, nine hundred sixty-six thousand, three hundred seventy-four".