1640110318 has 16 divisors (see below), whose sum is σ = 3067219584. Its totient is φ = 639003960.

The previous prime is 1640110291. The next prime is 1640110349. The reversal of 1640110318 is 8130110461.

It is a happy number.

It is a super-2 number, since 2×1640110318² = 5379923710420122248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1640110292 and 1640110301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5324880 + ... + 5325187.

It is an arithmetic number, because the mean of its divisors is an integer number (191701224).

Almost surely, 2^1640110318 is an apocalyptic number.

1640110318 is a deficient number, since it is larger than the sum of its proper divisors (1427109266).

1640110318 is a wasteful number, since it uses less digits than its factorization.

1640110318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10650087.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1640110318 is about 40498.2754941491. The cubic root of 1640110318 is about 1179.3001494981.

Adding to 1640110318 its reverse (8130110461), we get a palindrome (9770220779).

The spelling of 1640110318 in words is "one billion, six hundred forty million, one hundred ten thousand, three hundred eighteen".