640360035 has 48 divisors (see below), whose sum is σ = 1278590976. Its totient is φ = 290412864.

The previous prime is 640360031. The next prime is 640360037. The reversal of 640360035 is 530063046.

640360035 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 640360035 - 2² = 640360031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 640359990 and 640360008.

It is not an unprimeable number, because it can be changed into a prime (640360031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32002 + ... + 48008.

It is an arithmetic number, because the mean of its divisors is an integer number (26637312).

Almost surely, 2^640360035 is an apocalyptic number.

640360035 is a deficient number, since it is larger than the sum of its proper divisors (638230941).

640360035 is a wasteful number, since it uses less digits than its factorization.

640360035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16152 (or 16149 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 640360035 is about 25305.3360973531. The cubic root of 640360035 is about 861.9354440308.

The spelling of 640360035 in words is "six hundred forty million, three hundred sixty thousand, thirty-five".