1090345580 has 48 divisors (see below), whose sum is σ = 2327330880. Its totient is φ = 429004800.

The previous prime is 1090345579. The next prime is 1090345591. The reversal of 1090345580 is 855430901.

It is a self number, because there is not a number n which added to its sum of digits gives 1090345580.

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, 1080116 + ... + 1081124.

It is an arithmetic number, because the mean of its divisors is an integer number (48486060).

Almost surely, 2^1090345580 is an apocalyptic number.

1090345580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1090345580 is an abundant number, since it is smaller than the sum of its proper divisors (1236985300).

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

1090345580 is a wasteful number, since it uses less digits than its factorization.

1090345580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1090345580 is about 33020.3812818689. The cubic root of 1090345580 is about 1029.2512168695.

The spelling of 1090345580 in words is "one billion, ninety million, three hundred forty-five thousand, five hundred eighty".