1090540560 has 80 divisors (see below), whose sum is σ = 3384069120. Its totient is φ = 290519040.

The previous prime is 1090540523. The next prime is 1090540589. The reversal of 1090540560 is 650450901.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1090540560² = 2378557426010227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351496 + ... + 354584.

It is an arithmetic number, because the mean of its divisors is an integer number (42300864).

Almost surely, 2^1090540560 is an apocalyptic number.

1090540560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1090540560 is an abundant number, since it is smaller than the sum of its proper divisors (2293528560).

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

1090540560 is a wasteful number, since it uses less digits than its factorization.

1090540560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576 (or 4570 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1090540560 is about 33023.3335688570. Note that the first 3 decimals coincide. The cubic root of 1090540560 is about 1029.3125648325.

The spelling of 1090540560 in words is "one billion, ninety million, five hundred forty thousand, five hundred sixty".