40645300000 has 144 divisors (see below), whose sum is σ = 105907049640. Its totient is φ = 15301120000.

The previous prime is 40645299991. The next prime is 40645300043. The reversal of 40645300000 is 354604.

It can be written as a sum of positive squares in 12 ways, for example, as 23690135056 + 16955164944 = 153916^2 + 130212^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1688046 + ... + 1711954.

Almost surely, 2^40645300000 is an apocalyptic number.

40645300000 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 40645300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52953524820).

40645300000 is an abundant number, since it is smaller than the sum of its proper divisors (65261749640).

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

40645300000 is an equidigital number, since it uses as much as digits as its factorization.

40645300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23961 (or 23933 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 40645300000 its reverse (354604), we get a palindrome (40645654604).

The spelling of 40645300000 in words is "forty billion, six hundred forty-five million, three hundred thousand".