40321494455480 has 128 divisors (see below), whose sum is σ = 106240760801280. Its totient is φ = 13483768058880.

The previous prime is 40321494455443. The next prime is 40321494455507. The reversal of 40321494455480 is 8455449412304.

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, 43196657 + ... + 44120223.

It is an arithmetic number, because the mean of its divisors is an integer number (830005943760).

Almost surely, 2^{40321494455480} is an apocalyptic number.

40321494455480 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 40321494455480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53120380400640).

40321494455480 is an abundant number, since it is smaller than the sum of its proper divisors (65919266345800).

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

40321494455480 is a wasteful number, since it uses less digits than its factorization.

40321494455480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927429 (or 927425 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 53.

The spelling of 40321494455480 in words is "forty trillion, three hundred twenty-one billion, four hundred ninety-four million, four hundred fifty-five thousand, four hundred eighty".