3540022421 has 8 divisors (see below), whose sum is σ = 4036586904. Its totient is φ = 3075494400.

The previous prime is 3540022349. The next prime is 3540022457. The reversal of 3540022421 is 1242200453.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 847450321 + 2692572100 = 29111^2 + 51890^2 .

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 3540022421 - 2²² = 3535828117 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 (3540024421) 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, 8008880 + ... + 8009321.

It is an arithmetic number, because the mean of its divisors is an integer number (504573363).

Almost surely, 2^3540022421 is an apocalyptic number.

It is an amenable number.

3540022421 is a deficient number, since it is larger than the sum of its proper divisors (496564483).

3540022421 is a wasteful number, since it uses less digits than its factorization.

3540022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16018231.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 3540022421 is about 59498.0875406933. The cubic root of 3540022421 is about 1524.0597871583.

Adding to 3540022421 its reverse (1242200453), we get a palindrome (4782222874).

The spelling of 3540022421 in words is "three billion, five hundred forty million, twenty-two thousand, four hundred twenty-one".