40304423312 has 10 divisors (see below), whose sum is σ = 78089820198. Its totient is φ = 20152211648.

The previous prime is 40304423309. The next prime is 40304423317. The reversal of 40304423312 is 21332440304.

It can be written as a sum of positive squares in only one way, i.e., 27184095376 + 13120327936 = 164876^2 + 114544^2 .

It is not an unprimeable number, because it can be changed into a prime (40304423317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259513213 + ... + 1259513244.

Almost surely, 2^40304423312 is an apocalyptic number.

It is an amenable number.

40304423312 is a deficient number, since it is larger than the sum of its proper divisors (37785396886).

40304423312 is a wasteful number, since it uses less digits than its factorization.

40304423312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519026465 (or 2519026459 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 40304423312 its reverse (21332440304), we get a palindrome (61636863616).

The spelling of 40304423312 in words is "forty billion, three hundred four million, four hundred twenty-three thousand, three hundred twelve".