1098550836 has 30 divisors (see below), whose sum is σ = 2871829730. Its totient is φ = 366183504.

The previous prime is 1098550801. The next prime is 1098550867. The reversal of 1098550836 is 6380558901.

1098550836 is a `hidden beast` number, since 1 + 0 + 98 + 550 + 8 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 947408400 + 151142436 = 30780^2 + 12294^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1098550791 and 1098550800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1694971 + ... + 1695618.

Almost surely, 2^1098550836 is an apocalyptic number.

It is an amenable number.

1098550836 is an abundant number, since it is smaller than the sum of its proper divisors (1773278894).

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

1098550836 is a wasteful number, since it uses less digits than its factorization.

1098550836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390605 (or 3390594 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 1098550836 is about 33144.3937340842. The cubic root of 1098550836 is about 1031.8266001255.

The spelling of 1098550836 in words is "one billion, ninety-eight million, five hundred fifty thousand, eight hundred thirty-six".