40294631029 has 2 divisors, whose sum is σ = 40294631030. Its totient is φ = 40294631028.

The previous prime is 40294631009. The next prime is 40294631033. The reversal of 40294631029 is 92013649204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38019150225 + 2275480804 = 194985^2 + 47702^2 .

It is a cyclic number.

It is not a de Polignac number, because 40294631029 - 2¹⁵ = 40294598261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40294630982 and 40294631000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40294631009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20147315514 + 20147315515.

It is an arithmetic number, because the mean of its divisors is an integer number (20147315515).

Almost surely, 2^40294631029 is an apocalyptic number.

It is an amenable number.

40294631029 is a deficient number, since it is larger than the sum of its proper divisors (1).

40294631029 is an equidigital number, since it uses as much as digits as its factorization.

40294631029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 40294631029 in words is "forty billion, two hundred ninety-four million, six hundred thirty-one thousand, twenty-nine".