1999934 has 8 divisors (see below), whose sum is σ = 3096768. Its totient is φ = 967680.

The previous prime is 1999891. The next prime is 1999957. The reversal of 1999934 is 4399991.

1999934 = T₁₁₄ + T₁₁₅ + ... + T₂₃₇.

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

It is a congruent number.

It is an unprimeable number.

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, 16067 + ... + 16190.

It is an arithmetic number, because the mean of its divisors is an integer number (387096).

2^1999934 is an apocalyptic number.

1999934 is a deficient number, since it is larger than the sum of its proper divisors (1096834).

1999934 is a wasteful number, since it uses less digits than its factorization.

1999934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32290.

The product of its digits is 78732, while the sum is 44.

The square root of 1999934 is about 1414.1902276568. The cubic root of 1999934 is about 125.9907190611.

The spelling of 1999934 in words is "one million, nine hundred ninety-nine thousand, nine hundred thirty-four".