2133130440 has 64 divisors (see below), whose sum is σ = 7313592960. Its totient is φ = 487572480.

The previous prime is 2133130357. The next prime is 2133130451. The reversal of 2133130440 is 440313312.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1268881 + ... + 1270560.

It is an arithmetic number, because the mean of its divisors is an integer number (114274890).

Almost surely, 2^2133130440 is an apocalyptic number.

2133130440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133130440 is an abundant number, since it is smaller than the sum of its proper divisors (5180462520).

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

2133130440 is a wasteful number, since it uses less digits than its factorization.

2133130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539462 (or 2539458 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2133130440 is about 46185.8250981835. The cubic root of 2133130440 is about 1287.2783674804.

Adding to 2133130440 its reverse (440313312), we get a palindrome (2573443752).

The spelling of 2133130440 in words is "two billion, one hundred thirty-three million, one hundred thirty thousand, four hundred forty".