1996239 has 16 divisors (see below), whose sum is σ = 3174912. Its totient is φ = 1090848.

The previous prime is 1996237. The next prime is 1996277. The reversal of 1996239 is 9326991.

1996239 = 58² + 59² + ... + 183².

It is a happy number.

1996239 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 1996239 - 2¹ = 1996237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1996197 and 1996206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1584 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (198432).

2^1996239 is an apocalyptic number.

1996239 is a deficient number, since it is larger than the sum of its proper divisors (1178673).

1996239 is a wasteful number, since it uses less digits than its factorization.

1996239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166.

The product of its digits is 26244, while the sum is 39.

The square root of 1996239 is about 1412.8832223507. The cubic root of 1996239 is about 125.9130793817.

The spelling of 1996239 in words is "one million, nine hundred ninety-six thousand, two hundred thirty-nine".