2136888240 has 80 divisors (see below), whose sum is σ = 6631346400. Its totient is φ = 569235456.

The previous prime is 2136888233. The next prime is 2136888277. The reversal of 2136888240 is 428886312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2136888192 and 2136888201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252396 + ... + 260724.

It is an arithmetic number, because the mean of its divisors is an integer number (82891830).

Almost surely, 2^2136888240 is an apocalyptic number.

2136888240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2136888240 is an abundant number, since it is smaller than the sum of its proper divisors (4494458160).

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

2136888240 is a wasteful number, since it uses less digits than its factorization.

2136888240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9414 (or 9408 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 2136888240 is about 46226.4885103768. The cubic root of 2136888240 is about 1288.0338294678.

The spelling of 2136888240 in words is "two billion, one hundred thirty-six million, eight hundred eighty-eight thousand, two hundred forty".