1098540144 has 100 divisors (see below), whose sum is σ = 3424122856. Its totient is φ = 338007168.

The previous prime is 1098540103. The next prime is 1098540151. The reversal of 1098540144 is 4410458901.

1098540144 is a `hidden beast` number, since 10 + 98 + 540 + 14 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1098540099 and 1098540108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15754 + ... + 49449.

Almost surely, 2^1098540144 is an apocalyptic number.

It is an amenable number.

1098540144 is an abundant number, since it is smaller than the sum of its proper divisors (2325582712).

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

1098540144 is a wasteful number, since it uses less digits than its factorization.

1098540144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65236 (or 65221 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1098540144 is about 33144.2324394456. The cubic root of 1098540144 is about 1031.8232525863.

The spelling of 1098540144 in words is "one billion, ninety-eight million, five hundred forty thousand, one hundred forty-four".