1098862992 has 60 divisors (see below), whose sum is σ = 3133336284. Its totient is φ = 359374080.

The previous prime is 1098862981. The next prime is 1098862997. The reversal of 1098862992 is 2992688901.

1098862992 is a `hidden beast` number, since 1 + 0 + 9 + 8 + 8 + 629 + 9 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 707772816 + 391090176 = 26604^2 + 19776^2 .

It is not an unprimeable number, because it can be changed into a prime (1098862997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64359 + ... + 79622.

Almost surely, 2^1098862992 is an apocalyptic number.

1098862992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1098862992 is an abundant number, since it is smaller than the sum of its proper divisors (2034473292).

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

1098862992 is a wasteful number, since it uses less digits than its factorization.

1098862992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144048 (or 144039 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 1098862992 is about 33149.1024312876. The cubic root of 1098862992 is about 1031.9243229165.

The spelling of 1098862992 in words is "one billion, ninety-eight million, eight hundred sixty-two thousand, nine hundred ninety-two".