1098434 has 8 divisors (see below), whose sum is σ = 1719360. Its totient is φ = 525316.

The previous prime is 1098401. The next prime is 1098439. The reversal of 1098434 is 4348901.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1098397 and 1098406.

It is not an unprimeable number, because it can be changed into a prime (1098439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11894 + ... + 11985.

It is an arithmetic number, because the mean of its divisors is an integer number (214920).

2^1098434 is an apocalyptic number.

1098434 is a deficient number, since it is larger than the sum of its proper divisors (620926).

1098434 is a wasteful number, since it uses less digits than its factorization.

1098434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23904.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1098434 is about 1048.0620210655. The cubic root of 1098434 is about 103.1790018973.

The spelling of 1098434 in words is "one million, ninety-eight thousand, four hundred thirty-four".