1090455789 has 16 divisors (see below), whose sum is σ = 1486556928. Its totient is φ = 710697792.

The previous prime is 1090455781. The next prime is 1090455799. The reversal of 1090455789 is 9875540901.

It is not a de Polignac number, because 1090455789 - 2³ = 1090455781 is a prime.

It is a super-2 number, since 2×1090455789² = 2378187655527225042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090455781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136699 + ... + 144455.

It is an arithmetic number, because the mean of its divisors is an integer number (92909808).

Almost surely, 2^1090455789 is an apocalyptic number.

It is an amenable number.

1090455789 is a deficient number, since it is larger than the sum of its proper divisors (396101139).

1090455789 is an equidigital number, since it uses as much as digits as its factorization.

1090455789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8804.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 1090455789 is about 33022.0500423581. The cubic root of 1090455789 is about 1029.2858936202.

The spelling of 1090455789 in words is "one billion, ninety million, four hundred fifty-five thousand, seven hundred eighty-nine".