1118858862 has 64 divisors (see below), whose sum is σ = 2487598848. Its totient is φ = 332640000.

The previous prime is 1118858849. The next prime is 1118858891. The reversal of 1118858862 is 2688588111.

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, 1861362 + ... + 1861962.

It is an arithmetic number, because the mean of its divisors is an integer number (38868732).

Almost surely, 2^1118858862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118858862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243799424).

1118858862 is an abundant number, since it is smaller than the sum of its proper divisors (1368739986).

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

1118858862 is a wasteful number, since it uses less digits than its factorization.

1118858862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105.

The product of its digits is 245760, while the sum is 48.

The square root of 1118858862 is about 33449.3477066444. The cubic root of 1118858862 is about 1038.1460009733.

The spelling of 1118858862 in words is "one billion, one hundred eighteen million, eight hundred fifty-eight thousand, eight hundred sixty-two".