3404212421 has 8 divisors (see below), whose sum is σ = 3461021784. Its totient is φ = 3347435520.

The previous prime is 3404212351. The next prime is 3404212429. The reversal of 3404212421 is 1242124043.

It can be written as a sum of positive squares in 4 ways, for example, as 170015521 + 3234196900 = 13039^2 + 56870^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3404212421 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 (3404212429) 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, 298985 + ... + 310161.

It is an arithmetic number, because the mean of its divisors is an integer number (432627723).

Almost surely, 2^3404212421 is an apocalyptic number.

It is an amenable number.

3404212421 is a deficient number, since it is larger than the sum of its proper divisors (56809363).

3404212421 is a wasteful number, since it uses less digits than its factorization.

3404212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16231.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 3404212421 is about 58345.6289793846. The cubic root of 3404212421 is about 1504.3153393993.

Adding to 3404212421 its reverse (1242124043), we get a palindrome (4646336464).

The spelling of 3404212421 in words is "three billion, four hundred four million, two hundred twelve thousand, four hundred twenty-one".