1429838 has 4 divisors (see below), whose sum is σ = 2144760. Its totient is φ = 714918.

The previous prime is 1429837. The next prime is 1429843. The reversal of 1429838 is 8389241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1429798 and 1429807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429837) by changing a digit.

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, 357458 + ... + 357461.

It is an arithmetic number, because the mean of its divisors is an integer number (536190).

2^1429838 is an apocalyptic number.

1429838 is a deficient number, since it is larger than the sum of its proper divisors (714922).

1429838 is an equidigital number, since it uses as much as digits as its factorization.

1429838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714921.

The product of its digits is 13824, while the sum is 35.

The square root of 1429838 is about 1195.7583367888. The cubic root of 1429838 is about 112.6580625916.

The spelling of 1429838 in words is "one million, four hundred twenty-nine thousand, eight hundred thirty-eight".