2135022640 has 40 divisors (see below), whose sum is σ = 4974735168. Its totient is φ = 852149760.

The previous prime is 2135022629. The next prime is 2135022709. The reversal of 2135022640 is 462205312.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8220 + ... + 65860.

Almost surely, 2^2135022640 is an apocalyptic number.

2135022640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135022640 is an abundant number, since it is smaller than the sum of its proper divisors (2839712528).

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

2135022640 is a wasteful number, since it uses less digits than its factorization.

2135022640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58117 (or 58111 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2135022640 is about 46206.3051974511. The cubic root of 2135022640 is about 1287.6588830850.

Adding to 2135022640 its reverse (462205312), we get a palindrome (2597227952).

The spelling of 2135022640 in words is "two billion, one hundred thirty-five million, twenty-two thousand, six hundred forty".