1940920 has 16 divisors (see below), whose sum is σ = 4367160. Its totient is φ = 776352.

The previous prime is 1940903. The next prime is 1940929. The reversal of 1940920 is 290491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24222 + ... + 24301.

2^1940920 is an apocalyptic number.

1940920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1940920 is an abundant number, since it is smaller than the sum of its proper divisors (2426240).

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

1940920 is a wasteful number, since it uses less digits than its factorization.

1940920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48534 (or 48530 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1940920 is about 1393.1690493260. The cubic root of 1940920 is about 124.7390824217.

The spelling of 1940920 in words is "one million, nine hundred forty thousand, nine hundred twenty".