2106415442 has 4 divisors (see below), whose sum is σ = 3159623166. Its totient is φ = 1053207720.

The previous prime is 2106415429. The next prime is 2106415459. The reversal of 2106415442 is 2445146012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1909602601 + 196812841 = 43699^2 + 14029^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526603859 + ... + 526603862.

Almost surely, 2^2106415442 is an apocalyptic number.

2106415442 is a deficient number, since it is larger than the sum of its proper divisors (1053207724).

2106415442 is a wasteful number, since it uses less digits than its factorization.

2106415442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053207723.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 2106415442 is about 45895.7017813215. The cubic root of 2106415442 is about 1281.8818839568.

The spelling of 2106415442 in words is "two billion, one hundred six million, four hundred fifteen thousand, four hundred forty-two".