2036155640 has 64 divisors (see below), whose sum is σ = 4741632000. Its totient is φ = 786107520.

The previous prime is 2036155631. The next prime is 2036155687. The reversal of 2036155640 is 465516302.

It is a junction number, because it is equal to n+sod(n) for n = 2036155597 and 2036155606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517601 + ... + 521519.

It is an arithmetic number, because the mean of its divisors is an integer number (74088000).

Almost surely, 2^2036155640 is an apocalyptic number.

2036155640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2036155640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2370816000).

2036155640 is an abundant number, since it is smaller than the sum of its proper divisors (2705476360).

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

2036155640 is a wasteful number, since it uses less digits than its factorization.

2036155640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380 (or 4376 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 2036155640 is about 45123.7813131834. The cubic root of 2036155640 is about 1267.4679623671.

The spelling of 2036155640 in words is "two billion, thirty-six million, one hundred fifty-five thousand, six hundred forty".