1188258870 has 16 divisors (see below), whose sum is σ = 2851821360. Its totient is φ = 316869024.

The previous prime is 1188258859. The next prime is 1188258889. The reversal of 1188258870 is 788528811.

It is a super-3 number, since 3×1188258870³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

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, 19804285 + ... + 19804344.

It is an arithmetic number, because the mean of its divisors is an integer number (178238835).

Almost surely, 2^1188258870 is an apocalyptic number.

1188258870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1188258870 is an abundant number, since it is smaller than the sum of its proper divisors (1663562490).

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

1188258870 is a wasteful number, since it uses less digits than its factorization.

1188258870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39608639.

The product of its (nonzero) digits is 286720, while the sum is 48.

The square root of 1188258870 is about 34471.1309649103. The cubic root of 1188258870 is about 1059.1814227275.

The spelling of 1188258870 in words is "one billion, one hundred eighty-eight million, two hundred fifty-eight thousand, eight hundred seventy".