1640051030 has 32 divisors (see below), whose sum is σ = 3130902720. Its totient is φ = 616412160.

The previous prime is 1640050969. The next prime is 1640051051. The reversal of 1640051030 is 301500461.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1640050993 and 1640051011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99626 + ... + 114914.

It is an arithmetic number, because the mean of its divisors is an integer number (97840710).

Almost surely, 2^1640051030 is an apocalyptic number.

1640051030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1640051030 is a deficient number, since it is larger than the sum of its proper divisors (1490851690).

1640051030 is a wasteful number, since it uses less digits than its factorization.

1640051030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15944.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1640051030 is about 40497.5435057486. The cubic root of 1640051030 is about 1179.2859392366.

Adding to 1640051030 its reverse (301500461), we get a palindrome (1941551491).

The spelling of 1640051030 in words is "one billion, six hundred forty million, fifty-one thousand, thirty".