1640099319 has 8 divisors (see below), whose sum is σ = 2187610752. Its totient is φ = 1092993720.

The previous prime is 1640099309. The next prime is 1640099359. The reversal of 1640099319 is 9139900461.

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

It is not a de Polignac number, because 1640099319 - 2²¹ = 1638002167 is a prime.

It is a super-2 number, since 2×1640099319² = 5379851552368527522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640099309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91899 + ... + 108284.

It is an arithmetic number, because the mean of its divisors is an integer number (273451344).

Almost surely, 2^1640099319 is an apocalyptic number.

1640099319 is a deficient number, since it is larger than the sum of its proper divisors (547511433).

1640099319 is a wasteful number, since it uses less digits than its factorization.

1640099319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202917.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 1640099319 is about 40498.1396980158. The cubic root of 1640099319 is about 1179.2975132626.

The spelling of 1640099319 in words is "one billion, six hundred forty million, ninety-nine thousand, three hundred nineteen".