1098732 has 48 divisors (see below), whose sum is σ = 2777600. Its totient is φ = 336960.

The previous prime is 1098731. The next prime is 1098737. The reversal of 1098732 is 2378901.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098732.

It is not an unprimeable number, because it can be changed into a prime (1098731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13869 + ... + 13947.

2^1098732 is an apocalyptic number.

1098732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1098732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388800).

1098732 is an abundant number, since it is smaller than the sum of its proper divisors (1678868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1098732 is a wasteful number, since it uses less digits than its factorization.

1098732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1098732 is about 1048.2041785835. The cubic root of 1098732 is about 103.1883317136.

It can be divided in two parts, 1098 and 732, that added together give a triangular number (1830 = T₆₀).

The spelling of 1098732 in words is "one million, ninety-eight thousand, seven hundred thirty-two".