1929425 has 12 divisors (see below), whose sum is σ = 2428416. Its totient is φ = 1520400.

The previous prime is 1929413. The next prime is 1929451. The reversal of 1929425 is 5249291.

It is not a de Polignac number, because 1929425 - 2¹⁰ = 1928401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1929391 and 1929400.

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 11 ways as a sum of consecutive naturals, for example, 1232 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (202368).

2^1929425 is an apocalyptic number.

It is an amenable number.

1929425 is a deficient number, since it is larger than the sum of its proper divisors (498991).

1929425 is a wasteful number, since it uses less digits than its factorization.

1929425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1163 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 1929425 is about 1389.0374365005. The cubic root of 1929425 is about 124.4923410502.

The spelling of 1929425 in words is "one million, nine hundred twenty-nine thousand, four hundred twenty-five".