2105422456 has 32 divisors (see below), whose sum is σ = 4045541760. Its totient is φ = 1026842752.

The previous prime is 2105422453. The next prime is 2105422463. The reversal of 2105422456 is 6542245012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105422453) 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 7 ways as a sum of consecutive naturals, for example, 59001 + ... + 87703.

It is an arithmetic number, because the mean of its divisors is an integer number (126423180).

Almost surely, 2^2105422456 is an apocalyptic number.

It is an amenable number.

2105422456 is a deficient number, since it is larger than the sum of its proper divisors (1940119304).

2105422456 is a wasteful number, since it uses less digits than its factorization.

2105422456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28935 (or 28931 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 2105422456 is about 45884.8826521328. The cubic root of 2105422456 is about 1281.6804215087.

Adding to 2105422456 its reverse (6542245012), we get a palindrome (8647667468).

The spelling of 2105422456 in words is "two billion, one hundred five million, four hundred twenty-two thousand, four hundred fifty-six".