1098632 has 16 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 545680.

The previous prime is 1098631. The next prime is 1098649. The reversal of 1098632 is 2368901.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1098595 and 1098604.

It is not an unprimeable number, because it can be changed into a prime (1098631) 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, 1169 + ... + 1887.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2^1098632 is an apocalyptic number.

It is an amenable number.

1098632 is a deficient number, since it is larger than the sum of its proper divisors (974968).

1098632 is a wasteful number, since it uses less digits than its factorization.

1098632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1098632 is about 1048.1564768678. The cubic root of 1098632 is about 103.1852010909.

The spelling of 1098632 in words is "one million, ninety-eight thousand, six hundred thirty-two".