1955120 has 20 divisors (see below), whose sum is σ = 4545840. Its totient is φ = 782016.

The previous prime is 1955113. The next prime is 1955123. The reversal of 1955120 is 215591.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1955123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12140 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (227292).

2^1955120 is an apocalyptic number.

1955120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1955120 is an abundant number, since it is smaller than the sum of its proper divisors (2590720).

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

1955120 is a wasteful number, since it uses less digits than its factorization.

1955120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24452 (or 24446 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 1955120 is about 1398.2560566649. The cubic root of 1955120 is about 125.0425455174.

The spelling of 1955120 in words is "one million, nine hundred fifty-five thousand, one hundred twenty".