1929442 has 4 divisors (see below), whose sum is σ = 2894166. Its totient is φ = 964720.

The previous prime is 1929413. The next prime is 1929451. The reversal of 1929442 is 2449291.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2449291 = 13 ⋅188407.

It can be written as a sum of positive squares in only one way, i.e., 1929321 + 121 = 1389^2 + 11^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 482359 + ... + 482362.

2^1929442 is an apocalyptic number.

1929442 is a deficient number, since it is larger than the sum of its proper divisors (964724).

1929442 is an equidigital number, since it uses as much as digits as its factorization.

1929442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964723.

The product of its digits is 5184, while the sum is 31.

The square root of 1929442 is about 1389.0435558326. The cubic root of 1929442 is about 124.4927066796.

The spelling of 1929442 in words is "one million, nine hundred twenty-nine thousand, four hundred forty-two".