1940243 has 8 divisors (see below), whose sum is σ = 2042880. Its totient is φ = 1840320.

The previous prime is 1940233. The next prime is 1940269. The reversal of 1940243 is 3420491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1940243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878 + ... + 2156.

It is an arithmetic number, because the mean of its divisors is an integer number (255360).

2^1940243 is an apocalyptic number.

1940243 is a deficient number, since it is larger than the sum of its proper divisors (102637).

1940243 is a wasteful number, since it uses less digits than its factorization.

1940243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1940243 is about 1392.9260569032. The cubic root of 1940243 is about 124.7245775857.

The spelling of 1940243 in words is "one million, nine hundred forty thousand, two hundred forty-three".