2102400082 has 8 divisors (see below), whose sum is σ = 3176619516. Its totient is φ = 1043526912.

The previous prime is 2102400071. The next prime is 2102400089. The reversal of 2102400082 is 2800042012.

It can be written as a sum of positive squares in 2 ways, for example, as 2090226961 + 12173121 = 45719^2 + 3489^2 .

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

It is a super-2 number, since 2×2102400082² = 8840172209587213448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2102400089) 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 3 ways as a sum of consecutive naturals, for example, 3836223 + ... + 3836770.

Almost surely, 2^2102400082 is an apocalyptic number.

2102400082 is a deficient number, since it is larger than the sum of its proper divisors (1074219434).

2102400082 is a wasteful number, since it uses less digits than its factorization.

2102400082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673132.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2102400082 is about 45851.9365130852. The cubic root of 2102400082 is about 1281.0668355988.

Adding to 2102400082 its reverse (2800042012), we get a palindrome (4902442094).

The spelling of 2102400082 in words is "two billion, one hundred two million, four hundred thousand, eighty-two".