1943920 has 60 divisors (see below), whose sum is σ = 5037624. Its totient is φ = 691840.

The previous prime is 1943911. The next prime is 1943923. The reversal of 1943920 is 293491.

1943920 = T₅₈₉ + T₅₉₀ + ... + T₅₉₉.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1943923) 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 11 ways as a sum of consecutive naturals, for example, 41337 + ... + 41383.

2^1943920 is an apocalyptic number.

1943920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1943920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2518812).

1943920 is an abundant number, since it is smaller than the sum of its proper divisors (3093704).

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

1943920 is a wasteful number, since it uses less digits than its factorization.

1943920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1943920 is about 1394.2453155740. The cubic root of 1943920 is about 124.8033173565.

It can be divided in two parts, 194 and 3920, that added together give a palindrome (4114).

The spelling of 1943920 in words is "one million, nine hundred forty-three thousand, nine hundred twenty".