1105555420 has 24 divisors (see below), whose sum is σ = 2322608400. Its totient is φ = 442042752.

The previous prime is 1105555417. The next prime is 1105555439. The reversal of 1105555420 is 245555011.

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, 46576 + ... + 66184.

It is an arithmetic number, because the mean of its divisors is an integer number (96775350).

Almost surely, 2^1105555420 is an apocalyptic number.

1105555420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105555420 is an abundant number, since it is smaller than the sum of its proper divisors (1217052980).

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

1105555420 is a wasteful number, since it uses less digits than its factorization.

1105555420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22437 (or 22435 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 1105555420 is about 33249.8935336641. The cubic root of 1105555420 is about 1034.0150010232.

The spelling of 1105555420 in words is "one billion, one hundred five million, five hundred fifty-five thousand, four hundred twenty".