1105089620 has 24 divisors (see below), whose sum is σ = 2321610984. Its totient is φ = 441860096.

The previous prime is 1105089613. The next prime is 1105089659. The reversal of 1105089620 is 269805011.

It can be written as a sum of positive squares in 4 ways, for example, as 60248644 + 1044840976 = 7762^2 + 32324^2 .

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, 48404 + ... + 67476.

It is an arithmetic number, because the mean of its divisors is an integer number (96733791).

Almost surely, 2^1105089620 is an apocalyptic number.

1105089620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105089620 is an abundant number, since it is smaller than the sum of its proper divisors (1216521364).

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

1105089620 is a wasteful number, since it uses less digits than its factorization.

1105089620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21979 (or 21977 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1105089620 is about 33242.8882620027. Note that the first 3 decimals coincide. The cubic root of 1105089620 is about 1033.8697612527.

The spelling of 1105089620 in words is "one billion, one hundred five million, eighty-nine thousand, six hundred twenty".