2133320240 has 20 divisors (see below), whose sum is σ = 4959969744. Its totient is φ = 853328064.

The previous prime is 2133320237. The next prime is 2133320251. The reversal of 2133320240 is 420233312.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13333172 + ... + 13333331.

Almost surely, 2^2133320240 is an apocalyptic number.

2133320240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133320240 is an abundant number, since it is smaller than the sum of its proper divisors (2826649504).

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

2133320240 is a wasteful number, since it uses less digits than its factorization.

2133320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26666516 (or 26666510 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2133320240 is about 46187.8797954615. The cubic root of 2133320240 is about 1287.3165458283.

Adding to 2133320240 its reverse (420233312), we get a palindrome (2553553552).

The spelling of 2133320240 in words is "two billion, one hundred thirty-three million, three hundred twenty thousand, two hundred forty".