1920650 has 24 divisors (see below), whose sum is σ = 3615840. Its totient is φ = 758960.

The previous prime is 1920637. The next prime is 1920671. The reversal of 1920650 is 560291.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 5171 + ... + 5529.

It is an arithmetic number, because the mean of its divisors is an integer number (150660).

2^1920650 is an apocalyptic number.

1920650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1920650 is a deficient number, since it is larger than the sum of its proper divisors (1695190).

1920650 is a wasteful number, since it uses less digits than its factorization.

1920650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1920650 is about 1385.8751747542. The cubic root of 1920650 is about 124.3033243580.

The spelling of 1920650 in words is "one million, nine hundred twenty thousand, six hundred fifty".