1640062050 has 48 divisors (see below), whose sum is σ = 4437117792. Its totient is φ = 397590400.

The previous prime is 1640062031. The next prime is 1640062057. The reversal of 1640062050 is 502600461.

It is a self number, because there is not a number n which added to its sum of digits gives 1640062050.

It is not an unprimeable number, because it can be changed into a prime (1640062057) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 495339 + ... + 498638.

It is an arithmetic number, because the mean of its divisors is an integer number (92439954).

Almost surely, 2^1640062050 is an apocalyptic number.

1640062050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1640062050 is an abundant number, since it is smaller than the sum of its proper divisors (2797055742).

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

1640062050 is a wasteful number, since it uses less digits than its factorization.

1640062050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994003 (or 993998 counting only the distinct ones).

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

The square root of 1640062050 is about 40497.6795631552. The cubic root of 1640062050 is about 1179.2885805572.

The spelling of 1640062050 in words is "one billion, six hundred forty million, sixty-two thousand, fifty".