2753746021 has 8 divisors (see below), whose sum is σ = 2971272024. Its totient is φ = 2537034240.

The previous prime is 2753746007. The next prime is 2753746031. The reversal of 2753746021 is 1206473572.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34644996 + 2719101025 = 5886^2 + 52145^2 .

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

It is not a de Polignac number, because 2753746021 - 2⁵ = 2753745989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2753746031) 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, 196516 + ... + 210061.

It is an arithmetic number, because the mean of its divisors is an integer number (371409003).

Almost surely, 2^2753746021 is an apocalyptic number.

It is an amenable number.

2753746021 is a deficient number, since it is larger than the sum of its proper divisors (217526003).

2753746021 is a wasteful number, since it uses less digits than its factorization.

2753746021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407111.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 2753746021 is about 52476.1471623060. The cubic root of 2753746021 is about 1401.6555280978.

The spelling of 2753746021 in words is "two billion, seven hundred fifty-three million, seven hundred forty-six thousand, twenty-one".