1640373010 has 32 divisors (see below), whose sum is σ = 3129719472. Its totient is φ = 616888320.

The previous prime is 1640373001. The next prime is 1640373043. The reversal of 1640373010 is 103730461.

It can be written as a sum of positive squares in 8 ways, for example, as 1245595849 + 394777161 = 35293^2 + 19869^2 .

It is a super-2 number, since 2×1640373010² = 5381647223872920200, which contains 22 as substring.

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, 170940 + ... + 180280.

Almost surely, 2^1640373010 is an apocalyptic number.

1640373010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1640373010 is a deficient number, since it is larger than the sum of its proper divisors (1489346462).

1640373010 is a wasteful number, since it uses less digits than its factorization.

1640373010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10398.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1640373010 is about 40501.5186135039. The cubic root of 1640373010 is about 1179.3631079007.

The spelling of 1640373010 in words is "one billion, six hundred forty million, three hundred seventy-three thousand, ten".