1098913540 has 24 divisors (see below), whose sum is σ = 2329290432. Its totient is φ = 435456480.

The previous prime is 1098913499. The next prime is 1098913553. The reversal of 1098913540 is 453198901.

It is a super-2 number, since 2×1098913540² = 2415221936790663200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1098913493 and 1098913502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254616 + ... + 258895.

It is an arithmetic number, because the mean of its divisors is an integer number (97053768).

Almost surely, 2^1098913540 is an apocalyptic number.

1098913540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1098913540 is an abundant number, since it is smaller than the sum of its proper divisors (1230376892).

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

1098913540 is a wasteful number, since it uses less digits than its factorization.

1098913540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513627 (or 513625 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1098913540 is about 33149.8648564364. The cubic root of 1098913540 is about 1031.9401456082.

The spelling of 1098913540 in words is "one billion, ninety-eight million, nine hundred thirteen thousand, five hundred forty".