40312004437 has 2 divisors, whose sum is σ = 40312004438. Its totient is φ = 40312004436.

The previous prime is 40312004431. The next prime is 40312004441. The reversal of 40312004437 is 73440021304.

40312004437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29906168356 + 10405836081 = 172934^2 + 102009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40312004437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40312004431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20156002218 + 20156002219.

It is an arithmetic number, because the mean of its divisors is an integer number (20156002219).

Almost surely, 2^40312004437 is an apocalyptic number.

It is an amenable number.

40312004437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40312004437 is an equidigital number, since it uses as much as digits as its factorization.

40312004437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The spelling of 40312004437 in words is "forty billion, three hundred twelve million, four thousand, four hundred thirty-seven".