1820010422 has 32 divisors (see below), whose sum is σ = 2821754880. Its totient is φ = 879972640.

The previous prime is 1820010421. The next prime is 1820010481. The reversal of 1820010422 is 2240100281.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1820010394 and 1820010403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820010421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4222547 + ... + 4222977.

It is an arithmetic number, because the mean of its divisors is an integer number (88179840).

Almost surely, 2^1820010422 is an apocalyptic number.

1820010422 is a deficient number, since it is larger than the sum of its proper divisors (1001744458).

1820010422 is a wasteful number, since it uses less digits than its factorization.

1820010422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1820010422 is about 42661.5801629522. The cubic root of 1820010422 is about 1220.9314802412.

The spelling of 1820010422 in words is "one billion, eight hundred twenty million, ten thousand, four hundred twenty-two".