40021441031420 has 216 divisors, whose sum is σ = 90883704970800. Its totient is φ = 14802263308800.

The previous prime is 40021441031401. The next prime is 40021441031437. The reversal of 40021441031420 is 2413014412004.

It is a self number, because there is not a number n which added to its sum of digits gives 40021441031420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13126086056 + ... + 13126089104.

Almost surely, 2^{40021441031420} 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 40021441031420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45441852485400).

40021441031420 is an abundant number, since it is smaller than the sum of its proper divisors (50862263939380).

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

40021441031420 is a wasteful number, since it uses less digits than its factorization.

40021441031420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457 (or 4401 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 40021441031420 its reverse (2413014412004), we get a palindrome (42434455443424).

The spelling of 40021441031420 in words is "forty trillion, twenty-one billion, four hundred forty-one million, thirty-one thousand, four hundred twenty".