40321332540320 has 192 divisors, whose sum is σ = 103307133646080. Its totient is φ = 14783413248000.

The previous prime is 40321332540317. The next prime is 40321332540383. The reversal of 40321332540320 is 2304523312304.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 835114580 + ... + 835162860.

It is an arithmetic number, because the mean of its divisors is an integer number (538057987740).

Almost surely, 2^{40321332540320} is an apocalyptic number.

40321332540320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40321332540320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51653566823040).

40321332540320 is an abundant number, since it is smaller than the sum of its proper divisors (62985801105760).

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

40321332540320 is a wasteful number, since it uses less digits than its factorization.

40321332540320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51119 (or 51111 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 40321332540320 its reverse (2304523312304), we get a palindrome (42625855852624).

The spelling of 40321332540320 in words is "forty trillion, three hundred twenty-one billion, three hundred thirty-two million, five hundred forty thousand, three hundred twenty".