1167386220 has 864 divisors, whose sum is σ = 5205258240. Its totient is φ = 205286400.

The previous prime is 1167386203. The next prime is 1167386237. The reversal of 1167386220 is 226837611.

It is an interprime number because it is at equal distance from previous prime (1167386203) and next prime (1167386237).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 37657605 + ... + 37657635.

Almost surely, 2^1167386220 is an apocalyptic number.

1167386220 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 1167386220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2602629120).

1167386220 is an abundant number, since it is smaller than the sum of its proper divisors (4037872020).

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

1167386220 is a wasteful number, since it uses less digits than its factorization.

1167386220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1167386220 is about 34167.0341118453. The cubic root of 1167386220 is about 1052.9429816827.

The spelling of 1167386220 in words is "one billion, one hundred sixty-seven million, three hundred eighty-six thousand, two hundred twenty".