2133552240 has 60 divisors (see below), whose sum is σ = 7165182024. Its totient is φ = 568947072.

The previous prime is 2133552229. The next prime is 2133552247. The reversal of 2133552240 is 422553312.

It is a happy number.

2133552240 is a `hidden beast` number, since 2 + 133 + 5 + 522 + 4 + 0 = 666.

2133552240 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133552247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1480914 + ... + 1482353.

Almost surely, 2^2133552240 is an apocalyptic number.

2133552240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133552240 is an abundant number, since it is smaller than the sum of its proper divisors (5031629784).

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

2133552240 is a wasteful number, since it uses less digits than its factorization.

2133552240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963286 (or 2963277 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2133552240 is about 46190.3912085620. The cubic root of 2133552240 is about 1287.3632096480.

The spelling of 2133552240 in words is "two billion, one hundred thirty-three million, five hundred fifty-two thousand, two hundred forty".