640003010 has 8 divisors (see below), whose sum is σ = 1152005436. Its totient is φ = 256001200.

The previous prime is 640003009. The next prime is 640003019. The reversal of 640003010 is 10300046.

It can be written as a sum of positive squares in 2 ways, for example, as 598927729 + 41075281 = 24473^2 + 6409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (640003019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32000141 + ... + 32000160.

Almost surely, 2^640003010 is an apocalyptic number.

640003010 is a deficient number, since it is larger than the sum of its proper divisors (512002426).

640003010 is a wasteful number, since it uses less digits than its factorization.

640003010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64000308.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 640003010 is about 25298.2807716256. The cubic root of 640003010 is about 861.7752270207.

Adding to 640003010 its reverse (10300046), we get a palindrome (650303056).

The spelling of 640003010 in words is "six hundred forty million, three thousand, ten".