2135522040 has 32 divisors (see below), whose sum is σ = 6406566480. Its totient is φ = 569472512.

The previous prime is 2135521957. The next prime is 2135522041. The reversal of 2135522040 is 402255312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2135522040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135522041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8897889 + ... + 8898128.

Almost surely, 2^2135522040 is an apocalyptic number.

2135522040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135522040 is an abundant number, since it is smaller than the sum of its proper divisors (4271044440).

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

2135522040 is a wasteful number, since it uses less digits than its factorization.

2135522040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17796031 (or 17796027 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2135522040 is about 46211.7089058606. The cubic root of 2135522040 is about 1287.7592733887.

Adding to 2135522040 its reverse (402255312), we get a palindrome (2537777352).

The spelling of 2135522040 in words is "two billion, one hundred thirty-five million, five hundred twenty-two thousand, forty".