1098388 has 12 divisors (see below), whose sum is σ = 2005920. Its totient is φ = 525272.

The previous prime is 1098379. The next prime is 1098397. The reversal of 1098388 is 8838901.

It is an interprime number because it is at equal distance from previous prime (1098379) and next prime (1098397).

It is a congruent number.

It is an unprimeable number.

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, 5878 + ... + 6061.

It is an arithmetic number, because the mean of its divisors is an integer number (167160).

2^1098388 is an apocalyptic number.

It is an amenable number.

1098388 is a deficient number, since it is larger than the sum of its proper divisors (907532).

1098388 is a wasteful number, since it uses less digits than its factorization.

1098388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966 (or 11964 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 1098388 is about 1048.0400755696. The cubic root of 1098388 is about 103.1775615740.

The spelling of 1098388 in words is "one million, ninety-eight thousand, three hundred eighty-eight".