1105384820 has 12 divisors (see below), whose sum is σ = 2321308164. Its totient is φ = 442153920.

The previous prime is 1105384817. The next prime is 1105384823. The reversal of 1105384820 is 284835011.

It is an interprime number because it is at equal distance from previous prime (1105384817) and next prime (1105384823).

It can be written as a sum of positive squares in 2 ways, for example, as 526886116 + 578498704 = 22954^2 + 24052^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105384823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27634601 + ... + 27634640.

It is an arithmetic number, because the mean of its divisors is an integer number (193442347).

Almost surely, 2^1105384820 is an apocalyptic number.

1105384820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105384820 is an abundant number, since it is smaller than the sum of its proper divisors (1215923344).

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

1105384820 is a wasteful number, since it uses less digits than its factorization.

1105384820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55269250 (or 55269248 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1105384820 is about 33247.3280129396. The cubic root of 1105384820 is about 1033.9618114588.

The spelling of 1105384820 in words is "one billion, one hundred five million, three hundred eighty-four thousand, eight hundred twenty".