2040545731 has 8 divisors (see below), whose sum is σ = 2342062944. Its totient is φ = 1741531200.

The previous prime is 2040545701. The next prime is 2040545743. The reversal of 2040545731 is 1375450402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2040545731 - 2⁵ = 2040545699 is a prime.

It is a super-2 number, since 2×2040545731² = 8327653760604648722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2040545693 and 2040545702.

It is not an unprimeable number, because it can be changed into a prime (2040545701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623920 + ... + 627181.

It is an arithmetic number, because the mean of its divisors is an integer number (292757868).

Almost surely, 2^2040545731 is an apocalyptic number.

2040545731 is a deficient number, since it is larger than the sum of its proper divisors (301517213).

2040545731 is a wasteful number, since it uses less digits than its factorization.

2040545731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251341.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 2040545731 is about 45172.4001022748. The cubic root of 2040545731 is about 1268.3782243931.

The spelling of 2040545731 in words is "two billion, forty million, five hundred forty-five thousand, seven hundred thirty-one".