1920120 has 32 divisors (see below), whose sum is σ = 5760720. Its totient is φ = 512000.

The previous prime is 1920101. The next prime is 1920143. The reversal of 1920120 is 210291.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 1920120.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7881 + ... + 8120.

2^1920120 is an apocalyptic number.

1920120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1920120 is an abundant number, since it is smaller than the sum of its proper divisors (3840600).

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

1920120 is a wasteful number, since it uses less digits than its factorization.

1920120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16015 (or 16011 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1920120 is about 1385.6839466487. The cubic root of 1920120 is about 124.2918895446.

It can be divided in two parts, 1920 and 120, that multiplied together give a square (230400 = 480²).

The spelling of 1920120 in words is "one million, nine hundred twenty thousand, one hundred twenty".