1920099 has 8 divisors (see below), whose sum is σ = 2710800. Its totient is φ = 1204736.

The previous prime is 1920089. The next prime is 1920101. The reversal of 1920099 is 9900291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1920099 - 2⁸ = 1919843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1920049) 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 7 ways as a sum of consecutive naturals, for example, 18774 + ... + 18875.

It is an arithmetic number, because the mean of its divisors is an integer number (338850).

2^1920099 is an apocalyptic number.

1920099 is a deficient number, since it is larger than the sum of its proper divisors (790701).

1920099 is a wasteful number, since it uses less digits than its factorization.

1920099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37669.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 1920099 is about 1385.6763691425. The cubic root of 1920099 is about 124.2914364238.

The spelling of 1920099 in words is "one million, nine hundred twenty thousand, ninety-nine".