1930243 has 8 divisors (see below), whose sum is σ = 2253312. Its totient is φ = 1619016.

The previous prime is 1930237. The next prime is 1930249. The reversal of 1930243 is 3420391.

It is an interprime number because it is at equal distance from previous prime (1930237) and next prime (1930249).

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

It is not a de Polignac number, because 1930243 - 2⁹ = 1929731 is a prime.

It is a Duffinian number.

1930243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1930249) 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, 2605 + ... + 3262.

It is an arithmetic number, because the mean of its divisors is an integer number (281664).

2^1930243 is an apocalyptic number.

1930243 is a deficient number, since it is larger than the sum of its proper divisors (323069).

1930243 is an equidigital number, since it uses as much as digits as its factorization.

1930243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1930243 is about 1389.3318538060. The cubic root of 1930243 is about 124.5099318432.

The spelling of 1930243 in words is "one million, nine hundred thirty thousand, two hundred forty-three".