1640093043 has 16 divisors (see below), whose sum is σ = 2252381600. Its totient is φ = 1060770816.

The previous prime is 1640093023. The next prime is 1640093051. The reversal of 1640093043 is 3403900461.

It is not a de Polignac number, because 1640093043 - 2⁵ = 1640093011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1640093043.

It is not an unprimeable number, because it can be changed into a prime (1640093023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17571 + ... + 59907.

It is an arithmetic number, because the mean of its divisors is an integer number (140773850).

Almost surely, 2^1640093043 is an apocalyptic number.

1640093043 is a deficient number, since it is larger than the sum of its proper divisors (612288557).

1640093043 is a wasteful number, since it uses less digits than its factorization.

1640093043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42726.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1640093043 is about 40498.0622129010. The cubic root of 1640093043 is about 1179.2960090284.

The spelling of 1640093043 in words is "one billion, six hundred forty million, ninety-three thousand, forty-three".