1102881906 has 60 divisors (see below), whose sum is σ = 2874766158. Its totient is φ = 315106848.

The previous prime is 1102881893. The next prime is 1102881907. The reversal of 1102881906 is 6091882011.

It can be written as a sum of positive squares in only one way, i.e., 657460881 + 445421025 = 25641^2 + 21105^2 .

It is not an unprimeable number, because it can be changed into a prime (1102881907) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 61531 + ... + 77406.

Almost surely, 2^1102881906 is an apocalyptic number.

1102881906 is an abundant number, since it is smaller than the sum of its proper divisors (1771884252).

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

1102881906 is a wasteful number, since it uses less digits than its factorization.

1102881906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138965 (or 138949 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 1102881906 is about 33209.6658519775. The cubic root of 1102881906 is about 1033.1808245499.

The spelling of 1102881906 in words is "one billion, one hundred two million, eight hundred eighty-one thousand, nine hundred six".