426220662240 has 144 divisors (see below), whose sum is σ = 1454770751616. Its totient is φ = 113635968000.

The previous prime is 426220662233. The next prime is 426220662253. The reversal of 426220662240 is 42266022624.

426220662240 is a `hidden beast` number, since 4 + 2 + 6 + 2 + 20 + 6 + 622 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×426220662240³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 426220662195 and 426220662204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7851190 + ... + 7905290.

It is an arithmetic number, because the mean of its divisors is an integer number (10102574664).

Almost surely, 2^426220662240 is an apocalyptic number.

426220662240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426220662240 is an abundant number, since it is smaller than the sum of its proper divisors (1028550089376).

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

426220662240 is a wasteful number, since it uses less digits than its factorization.

426220662240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59593 (or 59582 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 426220662240 its reverse (42266022624), we get a palindrome (468486684864).

The spelling of 426220662240 in words is "four hundred twenty-six billion, two hundred twenty million, six hundred sixty-two thousand, two hundred forty".