1090285280 has 72 divisors (see below), whose sum is σ = 2996359128. Its totient is φ = 373809408.

The previous prime is 1090285279. The next prime is 1090285291. The reversal of 1090285280 is 825820901.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1090285280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61694 + ... + 77373.

It is an arithmetic number, because the mean of its divisors is an integer number (41616099).

Almost surely, 2^1090285280 is an apocalyptic number.

1090285280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1090285280 is an abundant number, since it is smaller than the sum of its proper divisors (1906073848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1090285280 is a wasteful number, since it uses less digits than its factorization.

1090285280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139096 (or 139081 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1090285280 is about 33019.4681968078. The cubic root of 1090285280 is about 1029.2322427651.

The spelling of 1090285280 in words is "one billion, ninety million, two hundred eighty-five thousand, two hundred eighty".