40382545920 has 240 divisors, whose sum is σ = 132742524768. Its totient is φ = 10475274240.

The previous prime is 40382545913. The next prime is 40382545921. The reversal of 40382545920 is 2954528304.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (40382545921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9090900 + ... + 9095340.

Almost surely, 2^40382545920 is an apocalyptic number.

40382545920 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 40382545920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66371262384).

40382545920 is an abundant number, since it is smaller than the sum of its proper divisors (92359978848).

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

40382545920 is an equidigital number, since it uses as much as digits as its factorization.

40382545920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4514 (or 4488 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 40382545920 in words is "forty billion, three hundred eighty-two million, five hundred forty-five thousand, nine hundred twenty".