1109169870 has 16 divisors (see below), whose sum is σ = 2662007760. Its totient is φ = 295778624.

The previous prime is 1109169839. The next prime is 1109169883. The reversal of 1109169870 is 789619011.

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, 18486135 + ... + 18486194.

It is an arithmetic number, because the mean of its divisors is an integer number (166375485).

Almost surely, 2^1109169870 is an apocalyptic number.

1109169870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1109169870 is an abundant number, since it is smaller than the sum of its proper divisors (1552837890).

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

1109169870 is a wasteful number, since it uses less digits than its factorization.

1109169870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36972339.

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 1109169870 is about 33304.2019871367. The cubic root of 1109169870 is about 1035.1406282813.

It can be divided in two parts, 110916 and 9870, that added together give a triangular number (120786 = T₄₉₁).

The spelling of 1109169870 in words is "one billion, one hundred nine million, one hundred sixty-nine thousand, eight hundred seventy".