11194887240 has 96 divisors (see below), whose sum is σ = 37366762680. Its totient is φ = 2904615936.

The previous prime is 11194887239. The next prime is 11194887257. The reversal of 11194887240 is 4278849111.

It can be written as a sum of positive squares in 4 ways, for example, as 9374499684 + 1820387556 = 96822^2 + 42666^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 406909 + ... + 433548.

Almost surely, 2^11194887240 is an apocalyptic number.

11194887240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11194887240 is an abundant number, since it is smaller than the sum of its proper divisors (26171875440).

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

11194887240 is a wasteful number, since it uses less digits than its factorization.

11194887240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840511 (or 840504 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 11194887240 in words is "eleven billion, one hundred ninety-four million, eight hundred eighty-seven thousand, two hundred forty".