40421340203424 has 96 divisors (see below), whose sum is σ = 107600611616064. Its totient is φ = 13284131420160.

The previous prime is 40421340203417. The next prime is 40421340203483. The reversal of 40421340203424 is 42430204312404.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17267647 + ... + 19468289.

It is an arithmetic number, because the mean of its divisors is an integer number (1120839704334).

Almost surely, 2^{40421340203424} 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 40421340203424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53800305808032).

40421340203424 is an abundant number, since it is smaller than the sum of its proper divisors (67179271412640).

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

40421340203424 is a wasteful number, since it uses less digits than its factorization.

40421340203424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203350 (or 2203342 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 40421340203424 its reverse (42430204312404), we get a palindrome (82851544515828).

The spelling of 40421340203424 in words is "forty trillion, four hundred twenty-one billion, three hundred forty million, two hundred three thousand, four hundred twenty-four".