40504051420 has 192 divisors, whose sum is σ = 108576599040. Its totient is φ = 12355891200.

The previous prime is 40504051417. The next prime is 40504051433. The reversal of 40504051420 is 2415040504.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37125075 + ... + 37126165.

It is an arithmetic number, because the mean of its divisors is an integer number (565503120).

Almost surely, 2^40504051420 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 40504051420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54288299520).

40504051420 is an abundant number, since it is smaller than the sum of its proper divisors (68072547620).

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

40504051420 is a wasteful number, since it uses less digits than its factorization.

40504051420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964 (or 1962 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 40504051420 its reverse (2415040504), we get a palindrome (42919091924).

The spelling of 40504051420 in words is "forty billion, five hundred four million, fifty-one thousand, four hundred twenty".