1090440554 has 32 divisors (see below), whose sum is σ = 2003170176. Its totient is φ = 434534400.

The previous prime is 1090440553. The next prime is 1090440563. The reversal of 1090440554 is 4550440901.

It is a self number, because there is not a number n which added to its sum of digits gives 1090440554.

It is not an unprimeable number, because it can be changed into a prime (1090440553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7847 + ... + 47354.

It is an arithmetic number, because the mean of its divisors is an integer number (62599068).

Almost surely, 2^1090440554 is an apocalyptic number.

1090440554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1090440554 is a deficient number, since it is larger than the sum of its proper divisors (912729622).

1090440554 is a wasteful number, since it uses less digits than its factorization.

1090440554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55310.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1090440554 is about 33021.8193623549. The cubic root of 1090440554 is about 1029.2811001373.

The spelling of 1090440554 in words is "one billion, ninety million, four hundred forty thousand, five hundred fifty-four".