40487326420 has 96 divisors (see below), whose sum is σ = 90302688000. Its totient is φ = 15216774144.

The previous prime is 40487326409. The next prime is 40487326469. The reversal of 40487326420 is 2462378404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6424431 + ... + 6430729.

It is an arithmetic number, because the mean of its divisors is an integer number (940653000).

Almost surely, 2^40487326420 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 40487326420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45151344000).

40487326420 is an abundant number, since it is smaller than the sum of its proper divisors (49815361580).

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

40487326420 is a wasteful number, since it uses less digits than its factorization.

40487326420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577 (or 6575 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 40.

The spelling of 40487326420 in words is "forty billion, four hundred eighty-seven million, three hundred twenty-six thousand, four hundred twenty".