40030456409 has 2 divisors, whose sum is σ = 40030456410. Its totient is φ = 40030456408.

The previous prime is 40030456309. The next prime is 40030456423. The reversal of 40030456409 is 90465403004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40028805184 + 1651225 = 200072^2 + 1285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40030456409 is a prime.

It is not a weakly prime, because it can be changed into another prime (40030456469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20015228204 + 20015228205.

It is an arithmetic number, because the mean of its divisors is an integer number (20015228205).

Almost surely, 2^40030456409 is an apocalyptic number.

It is an amenable number.

40030456409 is a deficient number, since it is larger than the sum of its proper divisors (1).

40030456409 is an equidigital number, since it uses as much as digits as its factorization.

40030456409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 40030456409 in words is "forty billion, thirty million, four hundred fifty-six thousand, four hundred nine".