420011108240 has 20 divisors (see below), whose sum is σ = 976525826844. Its totient is φ = 168004443264.

The previous prime is 420011108239. The next prime is 420011108249. The reversal of 420011108240 is 42801110024.

It can be written as a sum of positive squares in 2 ways, for example, as 138300684544 + 281710423696 = 371888^2 + 530764^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (420011108249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625069347 + ... + 2625069506.

Almost surely, 2^420011108240 is an apocalyptic number.

420011108240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420011108240 is an abundant number, since it is smaller than the sum of its proper divisors (556514718604).

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

420011108240 is a wasteful number, since it uses less digits than its factorization.

420011108240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250138866 (or 5250138860 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 420011108240 its reverse (42801110024), we get a palindrome (462812218264).

The spelling of 420011108240 in words is "four hundred twenty billion, eleven million, one hundred eight thousand, two hundred forty".