1946243 has 4 divisors (see below), whose sum is σ = 2095968. Its totient is φ = 1796520.

The previous prime is 1946209. The next prime is 1946257. The reversal of 1946243 is 3426491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1946243 - 2¹⁶ = 1880707 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1946443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74843 + ... + 74868.

It is an arithmetic number, because the mean of its divisors is an integer number (523992).

2^1946243 is an apocalyptic number.

1946243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1946243 is a deficient number, since it is larger than the sum of its proper divisors (149725).

1946243 is a wasteful number, since it uses less digits than its factorization.

1946243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149724.

The product of its digits is 5184, while the sum is 29.

The square root of 1946243 is about 1395.0781340126. The cubic root of 1946243 is about 124.8530112221.

It can be divided in two parts, 1946 and 243, that multiplied together give a triangular number (472878 = T₉₇₂).

The spelling of 1946243 in words is "one million, nine hundred forty-six thousand, two hundred forty-three".