1101868440 has 128 divisors (see below), whose sum is σ = 3402544320. Its totient is φ = 285286400.

The previous prime is 1101868393. The next prime is 1101868499. The reversal of 1101868440 is 448681011.

It is a super-2 number, since 2×1101868440² = 2428228118136067200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1382122 + ... + 1382918.

Almost surely, 2^1101868440 is an apocalyptic number.

1101868440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101868440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701272160).

1101868440 is an abundant number, since it is smaller than the sum of its proper divisors (2300675880).

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

1101868440 is a wasteful number, since it uses less digits than its factorization.

1101868440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 1101868440 is about 33194.4037452098. The cubic root of 1101868440 is about 1032.8642555896.

The spelling of 1101868440 in words is "one billion, one hundred one million, eight hundred sixty-eight thousand, four hundred forty".