1090385069 has 4 divisors (see below), whose sum is σ = 1092987840. Its totient is φ = 1087782300.

The previous prime is 1090385063. The next prime is 1090385111. The reversal of 1090385069 is 9605830901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1090385069 - 2¹⁶ = 1090319533 is a prime.

It is a super-2 number, since 2×1090385069² = 2377879197396269522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090385063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300757 + ... + 1301594.

It is an arithmetic number, because the mean of its divisors is an integer number (273246960).

Almost surely, 2^1090385069 is an apocalyptic number.

It is an amenable number.

1090385069 is a deficient number, since it is larger than the sum of its proper divisors (2602771).

1090385069 is an equidigital number, since it uses as much as digits as its factorization.

1090385069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602770.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 1090385069 is about 33020.9792253349. The cubic root of 1090385069 is about 1029.2636421688.

The spelling of 1090385069 in words is "one billion, ninety million, three hundred eighty-five thousand, sixty-nine".