635000240 has 160 divisors (see below), whose sum is σ = 1776850560. Its totient is φ = 206438400.

The previous prime is 635000239. The next prime is 635000243. The reversal of 635000240 is 42000536.

635000240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (635000243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990320 + ... + 990960.

It is an arithmetic number, because the mean of its divisors is an integer number (11105316).

Almost surely, 2^635000240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 635000240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888425280).

635000240 is an abundant number, since it is smaller than the sum of its proper divisors (1141850320).

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

635000240 is a wasteful number, since it uses less digits than its factorization.

635000240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 635000240 is about 25199.2110987626. The cubic root of 635000240 is about 859.5239117203.

Adding to 635000240 its reverse (42000536), we get a palindrome (677000776).

The spelling of 635000240 in words is "six hundred thirty-five million, two hundred forty", and thus it is an aban number.