1105420 has 24 divisors (see below), whose sum is σ = 2444400. Its totient is φ = 418752.

The previous prime is 1105397. The next prime is 1105427. The reversal of 1105420 is 245011.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1105420.

It is not an unprimeable number, because it can be changed into a prime (1105427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1075 + ... + 1834.

It is an arithmetic number, because the mean of its divisors is an integer number (101850).

2^1105420 is an apocalyptic number.

1105420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105420 is an abundant number, since it is smaller than the sum of its proper divisors (1338980).

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

1105420 is a wasteful number, since it uses less digits than its factorization.

1105420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937 (or 2935 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1105420 is about 1051.3895567296. The cubic root of 1105420 is about 103.3972780306.

The spelling of 1105420 in words is "one million, one hundred five thousand, four hundred twenty".