1099146240 has 176 divisors, whose sum is σ = 3906658560. Its totient is φ = 293068800.

The previous prime is 1099146239. The next prime is 1099146289. The reversal of 1099146240 is 426419901.

It is a happy number.

1099146240 is a `hidden beast` number, since 10 + 9 + 9 + 14 + 624 + 0 = 666.

It is a super-2 number, since 2×1099146240² = 2416244913812275200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1099146195 and 1099146204.

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, 134265 + ... + 142215.

Almost surely, 2^1099146240 is an apocalyptic number.

1099146240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099146240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1953329280).

1099146240 is an abundant number, since it is smaller than the sum of its proper divisors (2807512320).

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

1099146240 is an equidigital number, since it uses as much as digits as its factorization.

1099146240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985 (or 7961 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1099146240 is about 33153.3744888812. The cubic root of 1099146240 is about 1032.0129798259.

The spelling of 1099146240 in words is "one billion, ninety-nine million, one hundred forty-six thousand, two hundred forty".