3040827721 has 8 divisors (see below), whose sum is σ = 3127908744. Its totient is φ = 2954004480.

The previous prime is 3040827709. The next prime is 3040827733. The reversal of 3040827721 is 1277280403.

It is an interprime number because it is at equal distance from previous prime (3040827709) and next prime (3040827733).

It can be written as a sum of positive squares in 4 ways, for example, as 2696205625 + 344622096 = 51925^2 + 18564^2 .

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 3040827721 - 2³¹ = 893344073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3040827701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40390 + ... + 87823.

It is an arithmetic number, because the mean of its divisors is an integer number (390988593).

Almost surely, 2^3040827721 is an apocalyptic number.

It is an amenable number.

3040827721 is a deficient number, since it is larger than the sum of its proper divisors (87081023).

3040827721 is a wasteful number, since it uses less digits than its factorization.

3040827721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128891.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 3040827721 is about 55143.7006465834. The cubic root of 3040827721 is about 1448.7627529131.

The spelling of 3040827721 in words is "three billion, forty million, eight hundred twenty-seven thousand, seven hundred twenty-one".