1930239 has 12 divisors (see below), whose sum is σ = 2856672. Its totient is φ = 1255200.

The previous prime is 1930237. The next prime is 1930249. The reversal of 1930239 is 9320391.

It is not a de Polignac number, because 1930239 - 2¹ = 1930237 is a prime.

1930239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2247 + ... + 2984.

It is an arithmetic number, because the mean of its divisors is an integer number (238056).

2^1930239 is an apocalyptic number.

1930239 is a deficient number, since it is larger than the sum of its proper divisors (926433).

1930239 is a wasteful number, since it uses less digits than its factorization.

1930239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278 (or 5275 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 1930239 is about 1389.3304142644. The cubic root of 1930239 is about 124.5098458367.

The spelling of 1930239 in words is "one million, nine hundred thirty thousand, two hundred thirty-nine".