40205404304 has 40 divisors (see below), whose sum is σ = 83926737720. Its totient is φ = 18548241408.

The previous prime is 40205404259. The next prime is 40205404321. The reversal of 40205404304 is 40340450204.

It can be written as a sum of positive squares in 4 ways, for example, as 3971520400 + 36233883904 = 63020^2 + 190352^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449252 + ... + 531260.

It is an arithmetic number, because the mean of its divisors is an integer number (2098168443).

Almost surely, 2^40205404304 is an apocalyptic number.

It is an amenable number.

40205404304 is an abundant number, since it is smaller than the sum of its proper divisors (43721333416).

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

40205404304 is a wasteful number, since it uses less digits than its factorization.

40205404304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84387 (or 84381 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 40205404304 its reverse (40340450204), we get a palindrome (80545854508).

The spelling of 40205404304 in words is "forty billion, two hundred five million, four hundred four thousand, three hundred four".