2040020002620 has 72 divisors (see below), whose sum is σ = 6188425195680. Its totient is φ = 543973288320.

The previous prime is 2040020002609. The next prime is 2040020002627. The reversal of 2040020002620 is 262000200402.

It is a happy number.

2040020002620 is a `hidden beast` number, since 2 + 0 + 40 + 0 + 2 + 0 + 0 + 0 + 2 + 620 = 666.

It is a super-2 number, since 2×2040020002620² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2040020002593 and 2040020002602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040020002627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2812486 + ... + 3462674.

It is an arithmetic number, because the mean of its divisors is an integer number (85950349940).

Almost surely, 2^{2040020002620} is an apocalyptic number.

2040020002620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040020002620 is an abundant number, since it is smaller than the sum of its proper divisors (4148405193060).

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

2040020002620 is a wasteful number, since it uses less digits than its factorization.

2040020002620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667635 (or 667630 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The spelling of 2040020002620 in words is "two trillion, forty billion, twenty million, two thousand, six hundred twenty".