1920790 has 16 divisors (see below), whose sum is σ = 3473280. Its totient is φ = 764800.

The previous prime is 1920769. The next prime is 1920797. The reversal of 1920790 is 970291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920797) 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, 3771 + ... + 4249.

It is an arithmetic number, because the mean of its divisors is an integer number (217080).

2^1920790 is an apocalyptic number.

1920790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1920790 is a deficient number, since it is larger than the sum of its proper divisors (1552490).

1920790 is a wasteful number, since it uses less digits than its factorization.

1920790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1920790 is about 1385.9256834333. The cubic root of 1920790 is about 124.3063445235.

The spelling of 1920790 in words is "one million, nine hundred twenty thousand, seven hundred ninety".