1088436409 has 2 divisors, whose sum is σ = 1088436410. Its totient is φ = 1088436408.

The previous prime is 1088436397. The next prime is 1088436449. The reversal of 1088436409 is 9046348801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1080568384 + 7868025 = 32872^2 + 2805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1088436409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1088436449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544218204 + 544218205.

It is an arithmetic number, because the mean of its divisors is an integer number (544218205).

Almost surely, 2^1088436409 is an apocalyptic number.

It is an amenable number.

1088436409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088436409 is an equidigital number, since it uses as much as digits as its factorization.

1088436409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 1088436409 is about 32991.4596373061. The cubic root of 1088436409 is about 1028.6501338648.

The spelling of 1088436409 in words is "one billion, eighty-eight million, four hundred thirty-six thousand, four hundred nine".