1098542 has 8 divisors (see below), whose sum is σ = 1734600. Its totient is φ = 520344.

The previous prime is 1098541. The next prime is 1098593. The reversal of 1098542 is 2458901.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14417 + ... + 14492.

It is an arithmetic number, because the mean of its divisors is an integer number (216825).

2^1098542 is an apocalyptic number.

1098542 is a deficient number, since it is larger than the sum of its proper divisors (636058).

1098542 is a wasteful number, since it uses less digits than its factorization.

1098542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28930.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1098542 is about 1048.1135434675. The cubic root of 1098542 is about 103.1823833680.

The spelling of 1098542 in words is "one million, ninety-eight thousand, five hundred forty-two".