635982960 has 40 divisors (see below), whose sum is σ = 1971547920. Its totient is φ = 169595392.

The previous prime is 635982947. The next prime is 635982967. The reversal of 635982960 is 69289536.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635982967) 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 7 ways as a sum of consecutive naturals, for example, 1324725 + ... + 1325204.

It is an arithmetic number, because the mean of its divisors is an integer number (49288698).

Almost surely, 2^635982960 is an apocalyptic number.

635982960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

635982960 is an abundant number, since it is smaller than the sum of its proper divisors (1335564960).

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

635982960 is a wasteful number, since it uses less digits than its factorization.

635982960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649945 (or 2649939 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 635982960 is about 25218.7025835985. The cubic root of 635982960 is about 859.9670800451.

The spelling of 635982960 in words is "six hundred thirty-five million, nine hundred eighty-two thousand, nine hundred sixty".