2100443402 has 4 divisors (see below), whose sum is σ = 3150665106. Its totient is φ = 1050221700.

The previous prime is 2100443399. The next prime is 2100443431. The reversal of 2100443402 is 2043440012.

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., 1091046961 + 1009396441 = 33031^2 + 31771^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525110849 + ... + 525110852.

Almost surely, 2^2100443402 is an apocalyptic number.

2100443402 is a deficient number, since it is larger than the sum of its proper divisors (1050221704).

2100443402 is a wasteful number, since it uses less digits than its factorization.

2100443402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050221703.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2100443402 is about 45830.5946066599. The cubic root of 2100443402 is about 1280.6692874326.

Adding to 2100443402 its reverse (2043440012), we get a palindrome (4143883414).

The spelling of 2100443402 in words is "two billion, one hundred million, four hundred forty-three thousand, four hundred two".