1098155924 has 12 divisors (see below), whose sum is σ = 1940431584. Its totient is φ = 543746904.

The previous prime is 1098155923. The next prime is 1098155941. The reversal of 1098155924 is 4295518901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098155921) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1332302 + ... + 1333125.

It is an arithmetic number, because the mean of its divisors is an integer number (161702632).

Almost surely, 2^1098155924 is an apocalyptic number.

It is an amenable number.

1098155924 is a deficient number, since it is larger than the sum of its proper divisors (842275660).

1098155924 is a wasteful number, since it uses less digits than its factorization.

1098155924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665534 (or 2665532 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 1098155924 is about 33138.4357506506. The cubic root of 1098155924 is about 1031.7029434163.

The spelling of 1098155924 in words is "one billion, ninety-eight million, one hundred fifty-five thousand, nine hundred twenty-four".