2130020040 has 64 divisors (see below), whose sum is σ = 6400944000. Its totient is φ = 567037952.

The previous prime is 2130020017. The next prime is 2130020059. The reversal of 2130020040 is 400200312.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2130019998 and 2130020025.

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, 57064 + ... + 86696.

It is an arithmetic number, because the mean of its divisors is an integer number (100014750).

Almost surely, 2^2130020040 is an apocalyptic number.

2130020040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130020040 is an abundant number, since it is smaller than the sum of its proper divisors (4270923960).

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

2130020040 is a wasteful number, since it uses less digits than its factorization.

2130020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30246 (or 30242 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2130020040 is about 46152.1401453930. The cubic root of 2130020040 is about 1286.6523863336.

Adding to 2130020040 its reverse (400200312), we get a palindrome (2530220352).

The spelling of 2130020040 in words is "two billion, one hundred thirty million, twenty thousand, forty".