40431024224220 has 480 divisors, whose sum is σ = 136997550144000. Its totient is φ = 8727408281088.

The previous prime is 40431024224159. The next prime is 40431024224273. The reversal of 40431024224220 is 2242242013404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 20744495806 + ... + 20744497754.

It is an arithmetic number, because the mean of its divisors is an integer number (285411562800).

Almost surely, 2^{40431024224220} 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 40431024224220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68498775072000).

40431024224220 is an abundant number, since it is smaller than the sum of its proper divisors (96566525919780).

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

40431024224220 is a wasteful number, since it uses less digits than its factorization.

40431024224220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 40431024224220 its reverse (2242242013404), we get a palindrome (42673266237624).

The spelling of 40431024224220 in words is "forty trillion, four hundred thirty-one billion, twenty-four million, two hundred twenty-four thousand, two hundred twenty".