2102406394 has 8 divisors (see below), whose sum is σ = 3440301408. Its totient is φ = 955639260.

The previous prime is 2102406367. The next prime is 2102406403. The reversal of 2102406394 is 4936042012.

It is a happy number.

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

It is a super-2 number, since 2×2102406394² = 8840225291064166472, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 47781942 + ... + 47781985.

It is an arithmetic number, because the mean of its divisors is an integer number (430037676).

Almost surely, 2^2102406394 is an apocalyptic number.

2102406394 is a deficient number, since it is larger than the sum of its proper divisors (1337895014).

2102406394 is a wasteful number, since it uses less digits than its factorization.

2102406394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95563940.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2102406394 is about 45852.0053432781. The cubic root of 2102406394 is about 1281.0681176392.

The spelling of 2102406394 in words is "two billion, one hundred two million, four hundred six thousand, three hundred ninety-four".