1640056200 has 48 divisors (see below), whose sum is σ = 5084176080. Its totient is φ = 437348160.

The previous prime is 1640056199. The next prime is 1640056241. The reversal of 1640056200 is 26500461.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1366114 + ... + 1367313.

It is an arithmetic number, because the mean of its divisors is an integer number (105920335).

Almost surely, 2^1640056200 is an apocalyptic number.

1640056200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1640056200 is an abundant number, since it is smaller than the sum of its proper divisors (3444119880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1640056200 is a wasteful number, since it uses less digits than its factorization.

1640056200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733446 (or 2733437 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1640056200 is about 40497.6073367304. The cubic root of 1640056200 is about 1179.2871784057.

Adding to 1640056200 its reverse (26500461), we get a palindrome (1666556661).

The spelling of 1640056200 in words is "one billion, six hundred forty million, fifty-six thousand, two hundred".