11435420240 has 40 divisors (see below), whose sum is σ = 26672899968. Its totient is φ = 4559450240.

The previous prime is 11435420239. The next prime is 11435420267. The reversal of 11435420240 is 4202453411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204932 + ... + 254691.

Almost surely, 2^11435420240 is an apocalyptic number.

11435420240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11435420240 is an abundant number, since it is smaller than the sum of its proper divisors (15237479728).

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

11435420240 is a wasteful number, since it uses less digits than its factorization.

11435420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459947 (or 459941 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 11435420240 its reverse (4202453411), we get a palindrome (15637873651).

The spelling of 11435420240 in words is "eleven billion, four hundred thirty-five million, four hundred twenty thousand, two hundred forty".