1099563040 has 48 divisors (see below), whose sum is σ = 2667940632. Its totient is φ = 427935744.

The previous prime is 1099563037. The next prime is 1099563083. The reversal of 1099563040 is 403659901.

It can be written as a sum of positive squares in 4 ways, for example, as 810427024 + 289136016 = 28468^2 + 17004^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86949 + ... + 98788.

Almost surely, 2^1099563040 is an apocalyptic number.

1099563040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1099563040 is an abundant number, since it is smaller than the sum of its proper divisors (1568377592).

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

1099563040 is a wasteful number, since it uses less digits than its factorization.

1099563040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185789 (or 185781 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 1099563040 is about 33159.6598293770. The cubic root of 1099563040 is about 1032.1434109537.

The spelling of 1099563040 in words is "one billion, ninety-nine million, five hundred sixty-three thousand, forty".