1140103998 has 48 divisors (see below), whose sum is σ = 2794611456. Its totient is φ = 345484440.

The previous prime is 1140103981. The next prime is 1140104003. The reversal of 1140103998 is 8993010411.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101286 + ... + 111977.

It is an arithmetic number, because the mean of its divisors is an integer number (58221072).

Almost surely, 2^1140103998 is an apocalyptic number.

1140103998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1140103998 is an abundant number, since it is smaller than the sum of its proper divisors (1654507458).

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

1140103998 is a wasteful number, since it uses less digits than its factorization.

1140103998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213291 (or 213279 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1140103998 is about 33765.4260746107. The cubic root of 1140103998 is about 1044.6756921953.

The spelling of 1140103998 in words is "one billion, one hundred forty million, one hundred three thousand, nine hundred ninety-eight".