40536394080 has 288 divisors, whose sum is σ = 158022192384. Its totient is φ = 8552613888.

The previous prime is 40536394079. The next prime is 40536394117. The reversal of 40536394080 is 8049363504.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 532147 + ... + 603533.

It is an arithmetic number, because the mean of its divisors is an integer number (548688168).

Almost surely, 2^40536394080 is an apocalyptic number.

40536394080 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 40536394080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79011096192).

40536394080 is an abundant number, since it is smaller than the sum of its proper divisors (117485798304).

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

40536394080 is a wasteful number, since it uses less digits than its factorization.

40536394080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71438 (or 71417 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 40536394080 in words is "forty billion, five hundred thirty-six million, three hundred ninety-four thousand, eighty".