1646402106 has 16 divisors (see below), whose sum is σ = 3297808800. Its totient is φ = 547966608.

The previous prime is 1646402101. The next prime is 1646402119. The reversal of 1646402106 is 6012046461.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1646402101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204241 + ... + 212148.

It is an arithmetic number, because the mean of its divisors is an integer number (206113050).

Almost surely, 2^1646402106 is an apocalyptic number.

1646402106 is an abundant number, since it is smaller than the sum of its proper divisors (1651406694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1646402106 is a wasteful number, since it uses less digits than its factorization.

1646402106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417053.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1646402106 is about 40575.8808407162. The cubic root of 1646402106 is about 1180.8062348999.

Adding to 1646402106 its reverse (6012046461), we get a palindrome (7658448567).

The spelling of 1646402106 in words is "one billion, six hundred forty-six million, four hundred two thousand, one hundred six".