1640098126 has 8 divisors (see below), whose sum is σ = 2589628680. Its totient is φ = 776888568.

The previous prime is 1640098093. The next prime is 1640098133. The reversal of 1640098126 is 6218900461.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21580201 + ... + 21580276.

It is an arithmetic number, because the mean of its divisors is an integer number (323703585).

Almost surely, 2^1640098126 is an apocalyptic number.

1640098126 is a deficient number, since it is larger than the sum of its proper divisors (949530554).

1640098126 is a wasteful number, since it uses less digits than its factorization.

1640098126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43160498.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1640098126 is about 40498.1249689415. The cubic root of 1640098126 is about 1179.2972273242.

Adding to 1640098126 its reverse (6218900461), we get a palindrome (7858998587).

The spelling of 1640098126 in words is "one billion, six hundred forty million, ninety-eight thousand, one hundred twenty-six".