40432600421 has 2 divisors, whose sum is σ = 40432600422. Its totient is φ = 40432600420.

The previous prime is 40432600393. The next prime is 40432600499. The reversal of 40432600421 is 12400623404.

40432600421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37011988225 + 3420612196 = 192385^2 + 58486^2 .

It is a cyclic number.

It is not a de Polignac number, because 40432600421 - 2³⁰ = 39358858597 is a prime.

It is a super-3 number, since 3×40432600421³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40432600121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216300210 + 20216300211.

It is an arithmetic number, because the mean of its divisors is an integer number (20216300211).

Almost surely, 2^40432600421 is an apocalyptic number.

It is an amenable number.

40432600421 is a deficient number, since it is larger than the sum of its proper divisors (1).

40432600421 is an equidigital number, since it uses as much as digits as its factorization.

40432600421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 40432600421 in words is "forty billion, four hundred thirty-two million, six hundred thousand, four hundred twenty-one".