1966370 has 24 divisors (see below), whose sum is σ = 4118364. Its totient is φ = 674016.

The previous prime is 1966343. The next prime is 1966381. The reversal of 1966370 is 736691.

It can be written as a sum of positive squares in 2 ways, for example, as 1940449 + 25921 = 1393^2 + 161^2 .

It is a super-2 number, since 2×1966370² = 7733221953800, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1517 + ... + 2496.

2^1966370 is an apocalyptic number.

1966370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1966370 is an abundant number, since it is smaller than the sum of its proper divisors (2151994).

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

1966370 is a wasteful number, since it uses less digits than its factorization.

1966370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 1966370 is about 1402.2731545601. The cubic root of 1966370 is about 125.2819236743.

The spelling of 1966370 in words is "one million, nine hundred sixty-six thousand, three hundred seventy".