11396778240 has 144 divisors (see below), whose sum is σ = 38539767168. Its totient is φ = 2860351488.

The previous prime is 11396778233. The next prime is 11396778287. The reversal of 11396778240 is 4287769311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 11396778240.

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, 22012 + ... + 152571.

It is an arithmetic number, because the mean of its divisors is an integer number (267637272).

Almost surely, 2^11396778240 is an apocalyptic number.

11396778240 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 11396778240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19269883584).

11396778240 is an abundant number, since it is smaller than the sum of its proper divisors (27142988928).

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

11396778240 is a wasteful number, since it uses less digits than its factorization.

11396778240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174624 (or 174610 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 11396778240 in words is "eleven billion, three hundred ninety-six million, seven hundred seventy-eight thousand, two hundred forty".