1930055 has 16 divisors (see below), whose sum is σ = 2433024. Its totient is φ = 1468320.

The previous prime is 1930043. The next prime is 1930057. The reversal of 1930055 is 5500391.

It is not a de Polignac number, because 1930055 - 2²⁰ = 881479 is a prime.

It is a super-2 number, since 2×1930055² = 7450224606050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1930055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930057) 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 15 ways as a sum of consecutive naturals, for example, 10010 + ... + 10200.

It is an arithmetic number, because the mean of its divisors is an integer number (152064).

2^1930055 is an apocalyptic number.

1930055 is a deficient number, since it is larger than the sum of its proper divisors (502969).

1930055 is a wasteful number, since it uses less digits than its factorization.

1930055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 1930055 is about 1389.2641937371. The cubic root of 1930055 is about 124.5058894114.

The spelling of 1930055 in words is "one million, nine hundred thirty thousand, fifty-five".