426228043240 has 32 divisors (see below), whose sum is σ = 959628384000. Its totient is φ = 170381833024.

The previous prime is 426228043211. The next prime is 426228043243. The reversal of 426228043240 is 42340822624.

It is a self number, because there is not a number n which added to its sum of digits gives 426228043240.

It is not an unprimeable number, because it can be changed into a prime (426228043243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355120 + ... + 3479839.

It is an arithmetic number, because the mean of its divisors is an integer number (29988387000).

Almost surely, 2^426228043240 is an apocalyptic number.

426228043240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426228043240 is an abundant number, since it is smaller than the sum of its proper divisors (533400340760).

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

426228043240 is a wasteful number, since it uses less digits than its factorization.

426228043240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6836529 (or 6836525 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 37.

Adding to 426228043240 its reverse (42340822624), we get a palindrome (468568865864).

The spelling of 426228043240 in words is "four hundred twenty-six billion, two hundred twenty-eight million, forty-three thousand, two hundred forty".